New Head-Fier
Letshuoer Galileo Earphone Review
Pros: Design
Overall Sound performance
Budget friendly
Cons: Treble
The Letshuoer Galileo Earphone with its 4.4mm jack promises to deliver an exceptional audio experience. As an avid music listener, I was eager to put these earphones to the test and discover if they truly lived up to their claims of superior sound quality. After using the Letshuoer Galileo extensively for the past few weeks, I am ready to share my detailed review.

Shout out to Hifigo for giving me an opportunity to review the Galileo. You can check out their site for galileo as well as others music gears. They ship world wide

Design and Build Quality:

The Letshuoer Galileo boasts a sleek and elegant design, exuding a sense of sophistication.As the name was taken after a great astronomer Galileo Galilei the design of faceplate was like Universe .To cope up with the design I have edited a taken picture with the universe in the background Lol. The earphones have a lightweight yet sturdy construction, ensuring durability while providing a comfortable fit for extended listening sessions. The 4.4mm gold-plated jack feels robust and securely connects to compatible devices without any signal loss or audio interference.
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The Letshuoer Galileo comes with a variety of accessories that enhance the overall package. Apart from the multiple pairs of silicone ear tips in different sizes, it includes a sturdy carry case, a cleaning brush. At first opening the case was quite tough . I didn't want to break the case that's why watched a video on how to open galileo case on youtube .

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The included accessories not only offer convenience but also add value to the overall purchase. The cable was good enough , Looks premium. The high-quality oxygen-free copper silver-plated able was rigid , strong and tangled free. I have used the stock cable for listening music. I don't think you need to change the cable .I have chosen the 4.4mm connector .There was a variation of 3.5mm as well.

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Sound Quality:

Speaking of comfort, the Galileo earphones are designed to fit snugly in the ear without causing discomfort or fatigue during extended use. The lightweight build and ergonomic design make them suitable for long listening sessions without any discomfort or ear fatigue.

When I have connected the earphone with a basic 4.4mm port directly . i didn't like the sound quality at first. I thought it is not a good earphone but later when i connected with an amp dac my perception was change and I started to like the earphone very much.

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For sound quality, the Galileo earphones genuinely shine. The incorporation of the 4.4mm balanced jack elevates the listening experience to a whole new level. The audio reproduction is outstanding, with an expansive soundstage and excellent instrument separation. The earphones excel in delivering a balanced and natural sound signature, making them suitable for a wide range of music genres.

The bass response too good which is tight and controlled, not overpowering, and yet delivers a satisfying punch.
The sub-bass more emphasized than the mid bass. The mid-bass is clear , not muddy . I just loved the drum kick while using galileo. That was like genuine in front of listening experience. Midrange frequencies are rich and warm, allowing vocals and instruments to shine without being overshadowed. The tonality is accurate and the timbre natural. Voice was great as well not recessed .

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The treble is detailed and well-extended, offering crispness without being harsh or sibilant though there are some issues in the treble region for me. Sometimes it wass hurting my ears and putting me in discomfort in the ear for over crispness . Sometimes it feels like metalic. The Letshuoer Galileo provides above-average noise isolation, effectively blocking out most ambient sounds. This allows for a more immersive listening experience, especially in noisy environments. The included assortment of ear tips ensures a proper seal, contributing to both noise isolation and overall comfort.

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In conclusion, the Letshuoer Galileo earphone with its 4.4mm jack is an audiophile's dream come true. Its exceptional sound quality, balanced sound signature, and comfortable design make it a top-tier option for music enthusiasts under 100$ budget . The 4.4mm jack enhances the audio performance, making it compatible with high-resolution audio players and amplifiers.While the Galileo earphones are not the most budget-friendly option on the market, the investment is undoubtedly worth it for music lovers seeking unparalleled sound quality. If you are willing to invest in a premium pair of earphones and value exceptional audio performance, the Letshuoer Galileo with its 4.4mm jack should be at the top of your list.


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Reviewer at hxosplus
A gaze at the milky way
Pros: + Balanced tuning
+ Sub-bass extension
+ Expressive mid-range
+ Smooth and forgiving
+ Open sounding
+ Great looks and build quality
+ Very comfortable
+ Good noise attenuation
+ Comes with a carrying case
Cons: - Bass is lacking in weight
- Not that impactful
- Not the last word in resolution and refinement
- Average detail retrieval
- Slightly artificial treble
- Soundstage is mostly flat
- Bulky carrying case
The price of the LETSHUOER x GIZAUDIO Galileo is $99.99 and is exclusively available from HiFiGo.

You can read the full LETSHUOER Galileo Review by following the link.


Executive summary

The LETSHUOER Galileo is a well made earphone with great looks and very comfortable fit. It is lightweight and offers good passive noise attenuation. It comes with a high quality cable, plenty of eartips and a hard carrying case which is water resistant.

The LETSHUOER Galileo has a balanced and forgiving nature making it a solid option for everyone looking for a smooth sounding earphone suitable for most kinds of music. It has plenty of bass with good technicallities that is slightly lacking in physical impact and weight. The mid-range is melodious and evenly tuned with plenty of natural timbre and the treble is rather smooth and forgiving but not without some issues and mainly the lack of refinement and a touch of metallic timbre. The soundstage is open and spacious with good imaging but it is mostly flat.

The LETSHUOER Galileo is a solid option in the sub $100 category which is very crowded but it can win you for it's smooth and rather forgiving nature.
Last edited:
You can check the Simgot EA500 , tinhifi C3, Dunu Titan S or JD7
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i was thinking about tinhifi T3+ or Simgot Ew200
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100+ Head-Fier
LetShuoer x Gizaudio Galileo Review: Cruising the Goldilocks Zone of IEMs
Pros: Very pleasant and very versatile tuning
Very smooth tuning
The build is solid
Beautiful shell and great fit/ergonomics
Zero fatigue
Cons: Lacks a little sparkle and air
Lags a little in technicalities
Could be a little bit more dynamic



If you’ve dabbled in this hobby anytime over the past couple years, two names that you are most likely very familiar with are LetShuoer and Gizaudio. LetShuoer is the brand behind the critically acclaimed S12 Planar IEM and the EJ07 lineup, among other less known in ear monitors, and Gizaudio is the brainchild of Timmy Vangtan, one of the most well loved and respected reviewers in the portable audio world. In conjunction with LetShuoer, the Galileo, a one dynamic driver, and one balanced armature driver hybrid is Timmy’s first IEM collaboration and hopefully not his last!

An interesting fact is that the name, Galileo, as much as the space themed packaging and nebula-like faceplates of this beautiful IEM do suggest a homage to the famed astronomer, comes from a Japanese book series and drama, Detective Galileo.

Where to Buy:​




  • Very pleasant and very versatile tuning
  • Very smooth tuning
  • The build is solid
  • Beautiful shell and great fit/ergonomics
  • Zero fatigue


  • Lacks a little sparkle and air
  • Lags a little in technicalities
  • Could be a little bit more dynamic


  • Those looking for a long-session IEM that is perfect for relaxing with
  • Mids lovers
  • Those looking for a smooth and enjoyable listen
  • Those new to the IEM looking for a great starting point


  • Those looking for an incisive listen

Build, Fit, Accessories:​

What’s in the box: The Galileo comes in a relatively small sized box with artwork that resembles a window peering out into space. In the box are the IEMs themselves and one of the most solid (and sometimes tricky to open) IEM cases to be included with any IEMs I’ve owned or demoed. It’s not a case that one would carry around, but there is quite a lot of space inside with eartips and an IEM cleaning tool attached. The cable included is very solid and among the highest quality cables included with IEMs I’ve handled in this price range – it’s very similar to the one included with the S12.

Build and fit: The build quality of the Galileo is great, almost reminiscent of the resin EJ07 shell – relatively small in size but quite comfortable. Your mileage may vary. Overall, build and fit is great with the one caveat – the included cable does have relatively small earhooks, so that might cause some interference with getting a good seal, however, so a little bit of fiddling around will likely be required if using the stock cable.

Overall Sound:​

The LetShuoer x Gizaudio Galileo is a very pleasant IEM to listen to. Never offensive, never too intense. It is a very smooth and relaxed IEM and is very nicely balanced with a slight vocal-centric character. It’s not a very technically strong IEM but it is very easy to listen to for very long sessions.


The sub-bass focused bass shelf is neither too much nor too little and is quite pleasant if not lacking a just bit of texture and tactility. While it won’t blow anyone away with punchiness or slam, the quantity is just right and it doesn’t bleed into the midrange, while adding a nice touch of warmth.


The midrange is my favorite part of the Galileo. Vocals, especially female vocals, have a nice richness and sweetness to them without being shouty. There is a buttery smooth quality to the sound and yet there is a decent amount of clarity.


Treble on the Galileo is a little bit rolled off, which unfortunately is accompanied by a slight lack of air and sparkle. On the other hand, the treble is incredibly smooth. This tuning ensures that the Galileo is never fatiguing and never becomes harsh or sibilant. Things like cymbal strikes and percussion do lack a bit of incisiveness but it’s not offensive.


This is not the strong point of the Galileo. Resolution, imaging, staging are all about average for IEMs. Overall timbre is natural sounding with the exception of some instruments lacking bite. It does also lack a bit of dynamics and transients are a bit blunted and lacking a bit of crispness. But where the Galileo lacks in technicalities, it more than makes up in smoothness and pleasantness.


Given that the name and packaging does elicit images of space, it’s hard not to ignore space related analogies despite knowing that the Galileo nomenclature is related, as mentioned before, to a fictional detective. In astronomy related concepts, the Galileo makes me think of the goldilocks zone, that is, the orbital zone around any given star in which conditions would allow for a planet with a pressurized atmosphere to maintain liquid water on the surface. In other words, like a planet within the goldilocks zone, the Galileo is pleasant – it’s buttery smooth and infinitely easy to listen to. While it may not blow anyone away in terms of technicalities, it is a safe bet for anyone looking for a mid-focused IEM with sweet vocals. Timmy’s first IEM collaboration is quite enjoyable and I look forward to seeing what he cooks up next!


New Head-Fier
LETSHUOER x GIZAUDIO Galileo: Amazing Vocal Set without Breaking the Bank
Pros: Amazing accessories
Safe, inoffensive tonality
Natural midrange
Forward and beautiful vocals
Decent lower and mid treble energy
Minimal harshness/peaks
Cons: Stiff ear hooks
Slightly underwhelming bass
Lacking a sense of air
Hi everyone! I recently received my LETSHUOER x GIZAUDIO Galileo that I have purchased previously! I have been using them for more than a week and I love them a lot! Below is my impression of the Galileo.

  • Truthear Shio
    • Adds some warmth and body to vocals, making them sound a little fuller.

Ear tips
  • SpinFit CP145
    • Adds some air and energy to the treble.
    • Opens up the soundstage slightly, making them a little wider.
  • Comes with a decent amount of accessories
  • IEM.
  • Hard case.
    • Looks and feels like a very high quality premium case, I love it a lot!
  • Small cleaning brush.
  • Wide selection of ear tips.
    • 3 pairs of narrow bore silicone tips (S, M, L)
    • 3 pairs of wide bore silicon tips (S, M, L)
  • Stock cable
    • Quality is very good, but ear hooks are really stiff.

Build Quality

  • Lightweight.
  • Plasticky body.
  • Slightly larger shell.
  • Nozzle is a little on the narrower side.
  • The slightly large form factor of the IEM is kind of getting in the way, but I would still consider this as comfortable after getting used to it.
  • The stiff ear hooks from the cable causes a little pain after long hours of listening, as there is a slight force clamping on my ears, not sure if this problem will still persists in the future. But as the time of writing, I still face this problem but it is not as bad as when I first tried, hopefully this won't be a huge issue as time goes on.

  • Neutral with a slight bass boost.
  • Midrange and vocal focused.

  • Quite balanced between sub bass and mid bass, only slight emphasis on mid bass
  • The bass has a decent slam. However, it is rather tame, and lacking a fair bit of depth, tightness and punch.
  • For me, it is still acceptable, but definitely not as satisfying as other all rounders.

  • Very natural and beautiful midrange, with a hint of warmth.
  • Vocals, especially female vocals, truly come alive and become the absolute star of the show, with a forward and lively presentation. Also sound very smooth, sweet and emotional while not being aggressive in any way. Even the last bit of breath and extension can be heard clearly.
  • However, male vocals may sound a little thin and lean, and a step behind female vocals, but still come across as decently natural overall.

  • Treble is overall very smooth and non fatiguing but not airy as well.
  • Decent mid and lower treble energy which extends the energy from upper midrange really well. Therefore, it still has a fair bit of sparkle in the treble region.
  • There were also minimal harshness and peaks even when I tried with sibilant tracks.
  • Details on the treble are decent but not outstanding in any way.


Detail Retrieval

  • Resolution is decent but not outstanding by any means. However, it is still perfectly acceptable and reasonable, as the detail retrieval of the Galileo is definitely not bad at all.

  • Soundstage is average, depth and width are okay-ish, doesn't feel too compressed but isn't too spacious as well.

  • Imaging and accuracy is decent, I am still able to tell where the instruments and vocals come from,
  • Gaming:
    • Apex Legends: Sound of footsteps and gunfire can be pinpointed. I am able to judge them in terms of distance and direction roughly but not exactly.

  • Separation and layering is good.
  • Vocals really popped out but layering between instruments are not as well separated.
  • Runs most of my busy tracks fine, but sounds congested occasionally.

  • Even at this really competitive price bracket, the Galileo still shines and is very worth due to its very well done midrange & vocal centric tonality.
  • However, it is not very well rounded, specifically for busier genres like rock and pop sounds a little unsatisfying. But for slow and vocal focused, female vocals especially, sounds heavenly.
  • Overall, great purchase if you are looking for a set that is specialized for vocals and neutral.
  • But try to keep in mind that it may not be the best if you are looking for something very fun, exciting and engaging.

Thanks for reading!
David Haworth
female vocals are my thing. NIce review.
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100+ Head-Fier
Letshuoer x Gizaudio Galileo's Review - Smooth Criminal?
Pros: Smooth and non offensive tuning
Sonion BA
Scale well with source
Cons: Average technicalities for the price

Letshuoer is not a brand that the community isn’t familiar with, one of their releases, namely the S12 planar IEM is a hit which was well received by many in the community. This time around they teamed up with a well known Youtuber, Timmy from Gizaudio to create the Galileo. The build quality is solid, with a beautiful resin shell which is eye-catching, not to mention this
Packaging is good and similar to the D13 and S12 which i have reviewed previously, very good unboxing experience. The bundled case is very sturdy and I personally like it very much, although it does take a little effort to open it, but it is very sturdy and IEMs and cable stored inside will be well protected, a fair trade off to me.
The shell is also comfortable to be worn for a long session, I have them on for a long listening session lasting averagely 3-4 hours and I did not feel any discomfort with the Galileo.

Gears used for this review
  • Earmen Angel Dac/Amp
  • Earmen ST-Amp
  • Hiby FC6
  • Sony WM1A
  • Galileo stock tips and cable


My review is solely based on what I hear via my equipment and I never consider my reviews to be objective in any way rather a subjective approach. Do take into consideration that everyone’s ear anatomy is not the same, so the psychoacoustics perception might be different as well, but i believe it will not stray too far

Sound Impression
Galileo’s sound is overall smooth and easy to listen to, tonality is fairly neutral and the timbre is quite natural and accurate to my ears let’s take a look at the breakdown below:

  • Bass sounds lacking due to the lack of punch from the mid bass, sub bass however does rumble when its called for, it MGK’s Taurus, the sub bass can be heard rumbling
  • Mid bass as i mentioned earlier, lacks punch and slams, but it sort of blend in quite well with the tuning without much distractions
  • Bass has sufficient texture and good speed, it doesn’t bleed into the mids
  • The bass quantity is certainly not for basshead, quality is good for the asking price

  • The mids are forward and present themselves nicely, not too in your face and certainly not laidback
  • Vocal positioning is forward, both male and female vocal has good texture to it, doesn’t sound thin nor nasally at all
  • Upper mids are not offensive at all, i have listened to several JPop tracks and Galileo sounds good with it, not shouty at all, however, do take into consideration that my tolerance vs yours might differ, also ear tips might also play a role on how you will perceive the upper mids
  • This is the range where i personally think is Galileo’s achilles heel, don’t get me wrong, i’m not saying the treble performance here is bad, it just leave something to be desired
  • Treble is smooth all around, no harsh peak nor sibilance here, very safe sounding
  • Detail retrieval is average
  • It lacks the energy that some might crave for, but for those who prefer a smooth sound, this is it
  • Soundstage is slightly out of your head, good width but slightly lacking depth and height, this is due to the lack of air from the treble region
  • Imaging is good, instruments can be pinpointed easily in this track (Hans Zimmer Live - Wonder Woman Suite Part 1), separation is good as well

  • Galileo is very easy to drive, however it does scale with source
  • Paired with the Hiby FC6 with R-2R DAC with NOS filter, the overall sound is slightly more punchy than usual, better dynamics overall, a little bit more fun
  • When paired with my reference DAC, Earmen Angel, it doesn’t add much coloration to it but present it as it is, with better dynamics and tighter bass
  • Doesn’t really benefit much from amping
Final Thoughts
All in all, the first collab product between Letshuoer and Gizaudio is a very safe choice for the majority of listeners out there, I can understand why, after all, this is a first product collab afterall and nobody wants a screw up product which might affect the perception of the next collab. For those who are looking for a safe sounding set of IEM or new to the hobby and exploring, Galileo is your best bet, however, if you are expecting an IEM with a bit of energy on both the low and top end, you need to look elsewhere as Galileo is not tuned that way.


*Galileo is sent over by Letshuoer for the purpose of this review. I thank Ivy for the opportunity. Head over to HifiGo if you’re interested to get one as it is available exclusively from HifiGo.

Letshuoer x Gizaudio Galileo - Non Affiliated


100+ Head-Fier
Review of all-new Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors
Pros: Impressive bass response that is both powerful and well-controlled
Engaging midrange that is full-bodied and warm, with exceptional vocal detail
Sparkling and detailed high-end that brings out the details in the music without sounding harsh or piercing
Dual-driver hybrid configuration delivers exceptional clarity and precision
Stylish and comfortable design with multiple ear tip options to ensure a perfect fit
Comes with a high-quality cable and carrying case
Cons: May not be ideal for listeners who prefer a heavily bass-boosted sound signature
May not be as well-suited for use during physical activity, as they do not feature sweat or water resistance
This is a subjective preference and purely based on my experience with the unit. Also, this is an unpaid review which is not influenced by HiFiGo. As usual, I recommend you test the unit before making a purchase. Thanks to HiFiGo for organising this review tour.

Product Link: https://hifigo.com/products/letshuoer-x-gizaudio-galileo


Galileo was a legendary astrologer who peered into the infinite secrets of the starry sky, and the universe has a vast sky full of infinite possibilities. LETSHUOER collaborated with Gizaudio to create this stunning new IEM called the Galileo, which features a dual-driver hybrid configuration. The pair has stunningly beautiful ink-painted face covers that depict the Milky Way and a starry night sky. Galileo is equipped with a 10mm liquid silicone dynamic driver and a high-performance Sonion BA driver unit for exceptional sound reproduction!

  • Dual-Driver Hybrid Configuration.
  • 10mm Liquid Silicone Dynamic Driver Unit.
  • Sonion 2389 Balanced Armature Unit.
  • High-precision 3D Printing Cavity.
  • Beautifully designed synthetic Resin Starry Sky Face Panels.
  • High-Quality Oxygen-Free Copper Silver-Plated Cable.
  • Custom-designed Storage Case.
  • New 3D Printed Cavity Design.
  • Six-Pairs of High-Quality Silicone Ear Tips.
  • Comfortable & Ergonomic.
  • Natural, Open Sound.
  • Easy to Drive
Technical Specifications:
  • Impedance: 14Ω.
  • Sensitivity: 104dB/mW.
  • THD+N: <2%.
  • Frequency Response Range: 20Hz-20kHz.
  • Termination Option: 3.5mm/4.4mm.
  • Connectors: 2-pin 0.78mm.

The review is based on using Apple Music (ALACs) as a source via Macbook Pro onto an AQ Cobalt + AQ Jitterbug at the same volume level for all tracks. Please keep in mind that I have used the stock cable and tips with the unit. Following are the tracks used for this review:
  • Wow by Post Malone
  • Carry On by XXXTentacion
  • Jiya Jale by AR Rehman
  • Moh Moh Ke Dhaage by Anu Malik
  • Street Dancer by Avicii
  • One Kiss by Calvin Harris
  • Get Low by Dillion Francis and DJ Snake
Initial Impressions:
The Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors are a fantastic example of what can be achieved when high-end audio technology meets exceptional craftsmanship. These earphones deliver an exceptional listening experience, with a dynamic and engaging sound that is sure to please even the most discerning audiophile.

Starting with the bass response, the Galileo Dual-Driver Hybrid In-Ear Monitors deliver a deep and impactful low end that is full of detail and texture. The bass is tight and well-defined, with excellent extension and power that never overwhelms or muddies the rest of the sound. Whether you're listening to electronic dance music or acoustic bass-heavy recordings, the Galileo Dual-Driver Hybrid In-Ear Monitors deliver a truly impressive bass response that is both engaging and enjoyable.

Moving on to the mids, the Galileo Dual-Driver Hybrid In-Ear Monitors offer a rich and engaging midrange that is full of warmth and depth. Vocals are beautifully rendered, with a sense of intimacy and detail that is truly exceptional. Instruments in the midrange, such as guitars and pianos, are full of character and nuance, with a sense of texture and complexity that is truly impressive.

Finally, the high frequency response of the Galileo Dual-Driver Hybrid In-Ear Monitors is clear, detailed, and well-extended. High-frequency percussion instruments, such as cymbals and hi-hats, are rendered with a beautiful shimmer and sparkle, adding a sense of airiness and spaciousness to the sound. The highs are well-balanced with the other frequencies, never becoming harsh or sibilant, and adding a sense of clarity and detail to the overall sound.

Overall, the Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors are an exceptional pair of earphones that deliver a high-end audiophile experience. They offer a dynamic and nuanced sound that is full of texture and detail, with a deep and powerful bass response, a rich and engaging midrange, and a clear and detailed high-frequency response. If you're looking for a pair of earphones that can handle a wide range of genres with ease, the Galileo Dual-Driver Hybrid In-Ear Monitors are definitely worth checking out and they offer exceptional sound quality and comfort in a stylish and well-designed package, making them a great choice for audiophiles and music lovers alike.

Detailed Impressions:

The low frequency response of the Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors is truly exceptional. The dual-driver hybrid configuration of these earphones combines a dynamic driver with a balanced armature driver, which results in a bass response that is both powerful and well-controlled.

The bass on these earphones is deep and impactful, with excellent extension and plenty of detail. Whether you're listening to electronic dance music, hip hop, or any other genre that relies heavily on bass, the Galileo Dual-Driver Hybrid In-Ear Monitors deliver a truly impressive low-end performance. The bass is tight and well-defined, never becoming muddy or overpowering, and adding a sense of depth and weight to the overall sound.

What's particularly impressive about the bass response of these earphones is the way that they handle different types of bass. For example, on tracks with complex bass lines, each note is distinct and well-defined, with a sense of texture and nuance that is truly exceptional. And on tracks with big, booming bass drops, the Galileo Dual-Driver Hybrid In-Ear Monitors deliver a powerful and impactful low-end response that is sure to get your heart racing.

Overall, if you're a fan of bass-heavy music, the Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors are definitely worth checking out. With their exceptional low-end response and powerful, well-controlled bass, these earphones are sure to please even the most discerning bassheads.

The Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors deliver a rich and engaging midrange that is full of warmth and depth. The midrange frequencies are handled by the balanced armature driver, which is known for its accuracy and detail.

Vocals on these earphones are particularly impressive, with a sense of intimacy and detail that is truly exceptional. Whether you're listening to pop ballads, soulful R&B, or powerful rock anthems, the Galileo Dual-Driver Hybrid In-Ear Monitors deliver vocals that are full of emotion and nuance. You can hear every breath, every inflection, and every detail of the singer's performance.

Instruments in the midrange also sound fantastic on these earphones. Guitars, pianos, and other midrange instruments are rendered with a sense of texture and complexity that is truly impressive. Each note is distinct and well-defined, with a sense of presence and depth that makes the music come alive.

Overall, the midrange on the Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors is full-bodied and engaging, with a sense of warmth and detail that is truly exceptional. Whether you're a fan of vocal-heavy music or instrumental music, these earphones are sure to deliver a truly immersive listening experience.

The Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors deliver a sparkling and detailed high-frequency response that is both engaging and smooth. The high frequencies are handled by the dynamic driver, which is known for its dynamic range and power.

The high-end on these earphones is impressive, with a sense of airiness and sparkle that really brings out the details in the music. Cymbals, hi-hats, and other percussion instruments are rendered with a sense of clarity and precision that is truly exceptional. You can hear every nuance of the drummer's performance, from the shimmering decay of the cymbals to the snap of the snare drum.

In addition to percussion instruments, the high-end on these earphones also does justice to other instruments such as violins and flutes, which are rendered with a sense of delicacy and precision that is both natural and engaging.

What's particularly impressive about the high-end on the Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors is how well it integrates with the midrange and low-end frequencies. The high frequencies never sound harsh or piercing, but rather complement the rest of the sound signature with a sense of balance and smoothness.

Overall, the high-end on these earphones is detailed and engaging, with a sense of sparkle and clarity that really brings out the details in the music. Whether you're listening to classical music, jazz, or any other genre that relies heavily on high-frequency instruments, the Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors deliver an impressive and engaging listening experience.

In conclusion, the Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors are a truly impressive pair of earphones that deliver exceptional sound quality across the entire frequency range. The bass is powerful and well-controlled, the midrange is full-bodied and engaging, and the high-end is detailed and sparkling.

These earphones are a great choice for audiophiles who enjoy a balanced and engaging sound signature that doesn't sacrifice detail or accuracy. The dual-driver hybrid configuration of the Galileo delivers exceptional clarity and precision, while the construction and design of the earphones themselves are both stylish and comfortable.

Overall, if you're in the market for a high-quality pair of in-ear monitors that deliver exceptional sound quality across the entire frequency range, the Letshuoer x Gizaudio Galileo Dual-Driver Hybrid In-Ear Monitors are definitely worth checking out.


Thanks for your time and Cheers!
Nice review, well done!


100+ Head-Fier
LETSHUOER x Gizaudio Galileo Review: The Clearest, Blue Sky
Pros: Great unboxing and inclusions
Solid build and fit
Beautiful shell design (bias)
Exceptionally neutral sound signature
Clean, impactful subbass
Neutral, reference like midrange
Well presented, fatigue free treble
Decent techs for the price
Cons: Unnecessarily difficult to open carrying box
Earhooks are a little tight on first listen
Occasionally boring tonality
Lacks midbass texture
Occasional metallic sounding mid-treble
Lacks sparkle and air
Somewhat cramped staging
LETSHUOER x Gizaudio Galileo:
The Clearest, Blue Sky

PRICE: $109 (PHP. 5,400.00)

  • Great unboxing and inclusions
  • Solid build and fit
  • Beautiful shell design (bias)
  • Exceptionally neutral sound signature
  • Clean, impactful subbass
  • Neutral, reference like midrange
  • Well presented, fatigue free treble
  • Decent techs for the price

  • Unnecessarily difficult to open carrying box
  • Earhooks are a little tight on first listen
  • Occasionally boring tonality
  • Lacks midbass texture
  • Occasional metallic sounding mid-treble
  • Lacks sparkle and air
  • Somewhat cramped staging

  • People who want a very clean, reference like sound signature
  • People who like a very aesthetically pleasing, unique design
  • People who like to EQ
  • People who like a non-fatiguing sound

  • People who want a fun sound
  • People who want a pocketable, intuitive case
  • Trebleheads
  • Bassheads

  • Classical
  • Live Recordings (in general)
  • Vocal-centric genres (e.g. Adult Contemporary)
  • Jazz

The Letshuoer Galileo is Letshuoer’s latest collab and Gizaudio’s first and marks Timmy as one to have a great taste in tuning as the Galileo is one of the smoothest sounding IEMs you can get on a budget. However, that comes at the cost of a fun, engaging listen and that rolled off treble that might turn some people off. However, it’s so versatile that I think it’s a must-buy. RECOMMENDED


One of the things I love about the reviewer collab IEMs is their power to create something that they see is lacking in the market. Whether it’d something so outlandish and crazy or something that aligns closely to the person's target. Regardless, reviewers often have a goal in the IEMs that they tune. The Letshuoer x Gizaudio Galileo is one such IEM that, I’d be brave to say captures its goal of being one of the smoothest sounding and graphing IEM to near perfection. For an extortionist price of $110.

This unit was tested as a tour unit provided by our good friends at HiFiGo and managed by Mr. Neil Clark of Practiphile. I am eternally grateful for the opportunity. However, I was not paid to say anything and all my thoughts and opinions on this review are mine and mine alone. Audio is a very subjective hobby and as much as I try to objectively explain my thoughts and opinions, your mileage will vary. My preferences will also affect how I perceive the gear that I review. Sources and other accessories will also modify your experience. Lastly, my reviews should always be used only as a guide and not as the definitive bible. Trust your ears to know what’s good.

  • Zishan U1
  • VE Megatron
  • Not-by-VE Abigail
  • Huawei Nova 7 SE

A mixture of lossy, lossless and Hi-Res files will be used to give a general overview of the different formats in which the gear will be used.

Docs file explaining each track and what to look for: https://docs.google.com/document/d/1oMa7GPLaqtpnnoR9tixvWI4aK-7tXMyTEZCJAVkIZx0/edit
Spotify Playlist:

I currently prefer a lot of R&B, Indie, Funk and Adult Contemporary. However, I am very flexible with the music that I listen to and always try to look for the best genres for the gear.


  • Stock tips (in S&M)
  • Final E (in S&M)
  • Newbees (in S&M)
  • TIN HiFi Blues

  • Stock Cable

I found that the stock tips were perfectly fine with the Galileo, however using foams tips alleviated a little bit of the pressure that was slowly building up in my ear and also thickened the tonality to my preference.

Before we talk about the IEM, let’s talk about the masterminds behind it first. Starting with the manufacturer, Letshuoer is a brand many of us are familiar with due to their rise to prominence with the likes of the S12 and its many variants. Founding in 2016, they’re consistent of audiophiles in pursuit of the ultimate HiFi experience and their products are 100% designed and hand-assembled in house.

Gizaudio in the other hand is a prominent audio review channel and blog that has garnered over 27,000 subscribers and is one of the first few review channels I was exposed to coming into the hobby. Timmy Vangtan is the tuner behind the Galileo with the goal of creating the smoothest sounding and graphing IEM in the “budget” segment. And today, we’ll be taking a look at how well Timmy and Letshuoer were able to achieve that goal.


The box of the Galileo is a very stunning artwork of what seems to be the universe and befitting text sprawled around the front. Letshuoer and Galileo are prominently printed along with the phrase, “The Echo of the Deep” and “Letshuoer Sound Alive”. It’s a somewhat minimalist design queue that emphasizes the beautiful artwork that teases you with the beauty of what’s to come. Behind the box shows the Galileo’s specs and some contact details.



Removing the sleeve reveals Letshuoer’s typography placed vertically on the side in a nice blue color and their logo printed on the top left.


Satisfyingly removing this cover up then finally reveals a few paperwork that includes a nice Galileo manual and two cards before finally revealing the magnificent IEMs and the big beefy case. We’ll go further in-depth with each inclusions but I have to say that the manual was an added touch that I absolutely adored. It included the graphs and specs as well as the usual manual stuff on how to wear the IEM and warranty instructions.

Removing the IEMs and the case reveals an empty box. Let’s then move unto the inclusions itself.

Here is a list of all the inclusions
  • Galileo IEMs
  • 4-core Cable
  • 1 hard case
  • 3 pairs of white silicone tips
  • 3 pairs of black silicone tips
  • 1 instruction manual
  • 1 warranty card
  • 1 extra card

The tips included with the Galileo’s case are similar to the KBEAR/AET07 tips that are found in surprisingly many IEMs today. They’re fantastic tips and I will always vouch for them. There are also standard black silicone tips that I honestly just find to be disposable, but YMMV as these tips do fit better on some people’s ears based on my experience.

The case is quite interesting considering not only the price but just the material of the case itself. It’s a hard case that you could probably throw and it wouldn’t even budge (although I’ve been seeing instances of the case breaking apart so maybe not so much). However, the material isn’t my favorite. If some of you know those rubber material that gets icky after a while, that’s what the exterior base of the Galileo’s case is made of. Big yikes, but it’s a very sturdy case and I would totally use it to hold an IEM that I care about.

Now many of you who know about the Galileo are surely aware of the case. And yes, it is just as hard as people say it is to open. Thankfully, Joseph of Letshuoer provided us with a guide on how to open up the case. Basically, you press down on the case like a sandwich and then pull the tab down and towards you and voila! The infamously hard to open case is now easy peasy.


The unboxing is quite satisfying and the inclusions are solid, barring the case due to how hard it is to open without a guide and the material being that rubber that goes yucky. But for $110, this is definitely more than enough for anyone looking for a solid unboxing with generous inclusions.



The cable of the Galileo is an OFC Silver plated 4-core cable that is terminated in either 3.5 or 4.4mm, is of about 1.2m in length and has an interface of 0.78mm 2-pin.

The build is definitely on the beefier side with an interesting stiff but malleable material that allows it to behave while feeling durable. Each strand feels quite thick and durable but never felt too hefty or weighty in any way. It is, however, definitely on the stiffer side which would occasionally make it feel a little bit janky to pull around. Due to the thickness, it does not tangle easy and when it does, it's quite easy to untangle

There are thankfully no microphonics despite the textured and beefier nature which I absolutely adored as I really liked the stock cable.


Starting with the jack, it’s your standard 3.5mm gold plated jack housed in a minimalist grey housing with Letshuoer’s typography printed near the jack itself. It then tapers off with a jack tail to the 4 core strands.


There 2 grey strands and 2 silver strands and they are both housed in a textured material that allows them to feel quite durable.


Moving up then reveals the y-split which uses the same material as the jack and a chin-cinch which, interestingly, is of a clear material and seems somewhat out of place. Thankfully, due to the combination of the cable material and the shape of the chin cinch, it is quite usable and I’d argue is one of the most sturdy chin cinches that I’ve tried.


Moving up, the cable then split to the two 2-core strands all the way to the preformed ear hooks and the 2-pin interface. The earhooks, for the first few hours of listening, is definitely on the more aggressive in terms of fitting as I found that it really dug into the back of my ears and gave me some discomfort not only behind the ear but also in the inner ear due to the fitting.. However, the earhooks would then form into your ear and it becomes more comfortable. Of course, if you choose to do it manually, you may use a hairgun or heatgun to form it to your desired shape. The interface itself are smooth and uses the same material as the jack and y-split and has a small engraved section for easier pulling. The right side is indicated with a red ring covering the interface while the left is covered with a plain opaque material.


Overall, a solid stock cable that rivals even more expensive IEMs. I seriously wouldn’t mind using this cable for my other IEMs and even more expensive IEMs. It feels durable but not beefy, although a little bit stiff for my liking. The chin cinch, as mentioned is one of the best that I’ve tried in stock cables. The texture definitely helps making it feel more premium than it is. But definitely keep the preformed earhooks in mind, especially if you’re buying a new unit.


Before I talk about the build quality of the Galileo, I think I should let you all know how beautiful the Galileo is. Seriously, my first few minutes of the Galileo was just me staring at how beautiful the galaxy-like patterns were. I fell in love with the Galileo’s design from the moment I saw the teasers and I kid you not, it looks so much better in real life.


Small fun facts about the Galileo, the design of the faceplate was done by Timmy’s wife and each design has unique features which makes each Galileo truly your own Galileo.

Let’s move on to the build of the Galileo starting with the specs. The Galileo uses 1 10MM LCP dynamic driver and 1 Sonion 2386 Balanced Armature housed in a 3D Printed synthetic resin that uses a new cavity design.

It has a nice dark blue inner shell color that is consistent throughout the entire build, minus the vibrant faceplate.


The overall shape is akin to the usual resin IEMs like the Kiwi Ears Cadenza and TRI Star River, but the nozzle is also made of the same resin and there is a more prominent wing that allows for a more snug (or painful) fit. It’s leaning on the larger side for my ears (like the previously mentioned IEMs), but I never found it to put unnecessary pressure around my ear. But again, the earhooks did affect the fitting of the Galileo quite drastically. Thankfully, cable rolling or letting the earhooks mold into your ear does fix the issue.


The faceplate, as I’ve already hyped, is absolutely beautiful. The design is placed under the resin faceplate so you can be sure that the design will stay the way it was from the moment you bought it. The design on each side are different with one side of the unit I was able to try having more brown compared to the other.


The 2-pin side of the Galileo is pretty plain and features the aforementioned 2-pin placed flat with the resin. Printed markings and the words “Gizaudio Galileo” on the right and “Letshuoer Galileo” on the left can also be seen when flipping it over.


Moving unto the inner shell and nozzle, there is a vent placed directly across the driver. This is, however, changed in the batch following the unit I received and has been addressed by Letshuoer to be improved without changing the sound quality. As I do not have the later batches, I can’t say for sure. But this is definitely something worth noting.


The nozzle is integrated with the shell itself and is on the larger side. Using a narrower bored eartip definitely proved to be quite difficult due to the size of the nozzle, but the included tips do complement the Galileo quite well in terms of fitting.


There are thankfully no driver flex with the Galileo, however I found myself experiencing a very slight pressure build up with the Galileo on first wearing. It’s bordering really close to being unusable due to the pressure and occlusion, but it doesn’t quite reach that thankfully.

The seal then in turn is very good and blocks off outside noise quite well. Not as well as proper ANC, but its passive isolation is definitely on the better side compared to other resin IEMs that I’ve tried.


Overall, the build of the Galileo is what you’d expect from a resin build. It’s sturdy, fits well for people with average sizes ears and offers probably one of the most aesthetically pleasing designs in any IEMs in the market right now. I’d even put it alongside the likes of the Elysian Gaea in aesthetics which is a very high bar to reach. However, it does border having air pressure build up and occlusion which got me using foams tips on some occasion. But little did I know, the foams tips were a game changer not only in fit but also in sound.



Overall Sound:

The Letshuoer x Gizaudio Galileo is probably one of the most neutral sounding sets that I’ve heard, let alone at $110. I found that the transition from bass to mids to treble and even that treble roll of sounded so neutral that I found myself questioning whether I’m listening to music as intended by the artist. However, the mids occasionally sounded quite thin and the emphasis in the midtreble definitely gave the Galileo an occasionally metallic timbre.

Driving Power:
The Galileo has an impedance of 14ohms and sensitivity of 104db which allows it to sound good out of a smartphone. As usual, using a dongle dac will improve your experience but not necessarily for you to enjoy the Galileo.

Sound Notes:
As stated prior, I initially used foam tips purely for fitting. However, I found that it drastically thickened the midrange and somehow also made the upper midrange sound less metallic. So definitely consider tip rolling with the Galileo if you can.

The bass of the Galileo is sub bass dominant with a cleaner, less emphasized midbass.

Starting with the sub bass, it has a very clean but rumbly presentation that gives a lot of heft and impact on the very low notes. The decay is just perfect, decaying fast enough to not make the bass sound boomy but lingers long enough that the very low frequencies are very satisfyingly felt. However, I do not think that this is elevated enough for bassheads, especially considering the midbass being as lean as it is.

Speaking of the midbass, it’s on the leaner side. It’s very clean with instruments being presented linearly and cleanly. This assures that bass notes and low vocals are articulate and audible. Its attack is snappy and decays quickly which creates a very smooth and clean reproduction of sound in this region. However, it might come across as too clean as body and texture are lacking with male vocals often sounding dry, but thankfully never distant. I personally prefer a bit of warmth coming from my male vocals and instruments and the Galileo shys away from that by presenting them in a linear and clean manner. Due to this, it does not sound bloated or bleed into the midrange.

A track like Tabula Rasa by Globular at 3:12 with its lowend focused rumbles sound absolutely fantastic. The notes are clear while offering a strong rumble and reverb. A track like Wake Up by SOS is also presented very cleanly, however its cleaner nature is evident with the bass notes sounding somewhat dry cut and the male vocals lacking a little bit of that low end body.

Moving unto the midrange, it follows the bass presentation of being very clean and smooth with not massive peaks or dips in clarity.

Lower mids, like stated prior, are clean and articulate. Instruments sound detailed while vocals sound very linear without any dips in clarity or bloat from the bass. However, it occasionally lacks body and texture that leaves them sounding somewhat boring and bland. Particularly male vocals sound quite boring as paired with the later pinna which we will be taking a look at the upper mids section. However, it is still a very linear and smooth presentation that does not sound offensive or wrong in any sense.

Upper mids is also very smoothly done with a natural rise into the pinna which gives female vocals a very natural sound and instruments a realistic presentation. The transition from the lower mids is nicely done with good cohesion between lower, more bodied notes to more energetic and bright sound. Female vocals sound satisfying without inducing any harshness or peakiness. String and air instruments in this region sound particularly nice with a nice forwardness that gives them a realistic but still appropriately energetic tonality. The timbre however I found somewhat metallic coming into higher upper mids that affect how some instruments and vocals are presented. This could definitely be due to the rolled off treble along with the cleaner lower mids giving upper mids extra emphasis that might not seem natural to some. Thankfully, it does not sound harsh or shouty in any tracks I tried it on and still presented female vocals and instruments quite satisfyingly. Details are also well presented here, albeit somewhat more blunted due to the rolled off treble extension.

I should note here however that the upper mids will occasionally sound somewhat dry due to the lower mids that may make some vocals and instruments sound a little bit too dry. I honestly found this causing the “metallic” timbre, albeit I don’t find it as metallic as some other IEMs that have a BA such as the AFUL Performer 5.

A track like I’m Still Standing by Taron Egerton has a very smooth and neutral production of Taron’s vocals while still providing an immersive and detailed instrument presentation without bloat coming from the upper mids to lower midrange that the song has prominence in. It passes my shout and sibilance test of “You Should Head North” by Necry Talkie while having the bonus of presenting Mossa’s vocals in such a smooth but clean spotlight that is probably the best under $120 that I’ve heard. However, both tracks sound somewhat dry due to the leaner midbass and lower mids that make it sound more “neutral” but also occasionally metallic.

The treble region of the Galileo is smooth with an early roll of that emphasizes lower and midtreble.

Lower treble carries over from the upper mids with the smooth and neutral tonality but bumps that metallic timbre just a tad bit much that it would occasionally sound distracting and over emphasized. I personally really like that quality as being a treblehead. However, I take issue with it due to the treble extension not really being there to compliment it. There are no peaks nor dips in this region so instruments and vocals do not sound veiled or harsh. Detail and nuance in this region is quite decent as even with it’s smoother tonality, it still presents a good amount of nuance.

This would transition to the mid treble which I found to be the most problematic aspects of the Galileo as instruments and vocals in this region is prone to sounding quite unnatural and overly dry. This is most likely due to the leaner lower frequencies and rolled off treble that emphasizes this region more. I don’t think it sounds entirely unnatural and there are much worse sounding IEMs in this region. However, considering the price and the tonality that it’s trying to achieve, I personally find that the emphasis can be a bit too much at times.

The upper treble isn’t as bad it would look on the graph if we were to look at it as its own entity. The upper treble sounds naturally rolled off with the lingering notes of instruments and vocals still sounding quite natural and not dark. However, the combination of the leaner lower frequencies and this affects the region prior by overemphasizing it.

Transients in this region is respectable but definitely on the smoother side. Attack in the treble is quite snappy but not the most dynamic that I’ve heard. This could be attributed to the rolled off treble dulling a bit of the attack, but does not dull it to the point where it sounds lifeless.

Paranoid Android by Radiohead is probably the best case scenario for the Galileo to emphasize this region satisfyingly as the percussive instruments and string instruments sound quite natural and energetic that makes the song sound more ethereal than it already is. But then on the other side of the spectrum, you have the song VIVID by ena mori with a prominent snare hit and female vocals that go quite high that would sound quite energetic and bright, but lacks body and will occasionally sound too dry or too unnatural sounding.

The overall technicalities of the Galileo is respectable, however not necessarily groundbreaking especially for the price.

The stage is by far the weakest aspect of the Galileo as the rolled off treble affects the headstage of the Galileo to the point that instruments and vocals sound quite intimate. It doesn’t sound too choked or too closed in, however it is narrower than its contemporaries.

Where the Galileo shines however is on the imaging and separation. Due to the smooth and clean sound signature thanks in part to the leaner mid bass, instruments are very clean and crisp with their positioning and does quite admirably for more complex tracks which was quite impressive.

The song, “However the illusionist rolls the dice” by Lie and a Chameleon sounds clean and very well separated and positioned with the Galileo with the cymbals strikes complimenting the electric guitar and vocals without having one more dominant than the other in most instances.


Vs Simgot EA500 ($92)


  • Metal build on EA500 feels more premium, but cable is better on Galileo
  • Fit is initially better on the EA500, but breaking in the cable gives Galileo a more snug fit
  • EA500 is more of a musical balanced sound signature compared to the more neutral Galileo
  • Subbass isn’t as impactful on the EA500, but bass is much thicker and textured
  • Mids are more forward and engaging on the EA500, but less fatiguing on the Galileo
  • Treble is better extended but potentially harsher on the EA500
  • Techs are overall better on the EA500 but separation is slightly cleaner

Vs Truthear Hexa ($79)


  • Both are made from resin, but the Galileo fits better for me
  • Both have neutral slight u-shape sound signatures
  • Bass sounds thicker but less clean on the Hexa
  • Mids sound quite neutral on both, but Galileo has a smoother presentation
  • Treble is better extended on the Hexa, but potentially more fatiguing
  • Stage is better on the Hexa but separation and imaging is better on Hexa

Vs Celest Pandamon ($59)


  • Both are made from Resin, but the Pandamon has a metal faceplate and feels cheaper
  • Galileo fits much better
  • Pandamon has a warn-neutral sound signature
  • Bass is more bodied and textutred, but less controlled on the Pandamon
  • Mids are more colored but more full on the Pandamon
  • Treble is more elevated on the Galileo with slightly better extension
  • Technicalities is better on the Galileo

AFUL Performer 5 ($219)


  • Both are made from Resin but the P5 is a more comfortable and snug fit
  • The P5 has a more u-shaped sound signature with more emphasis on the bass
  • Bass on the Galileo sounds more detailed and clean but less fun and impactful
  • Mids on the Galileo sounds more neutral with better body and coherency
  • Treble sounds more metallic but better extended on the P5
  • Technicalities are about similar with stage being wide and taller on the P5


The Letshuoer x Gizaudio Galileo is by far one of the smoothest and most neutral sounding IEM that I’ve tried in a while. A combination of an elevated subbass that transitions into a clean midbass, uncompromised midrange and a smooth elevation into the treble with an organic roll off created one of the most neutral and borderline reference-like IEM that I’ve heard in the sub $200. However, this comes at the cost of sounding quite stale and arguably boring due to the smoothness in not only the tuning but also its dynamics. It wouldn’t be the first IEM I’d pick if I wanted to have a fun, listening session and would be reserved for more analytical or easy going sessions. It’s also a bonus that the Galileo is seriously one of the smoothest graphing IEM you can get today which means EQing will become a breeze.

But let’s take a step back and look at the market that surrounds the Galileo. Almost all of them feature a tuning akin to the likes of the Aria which, let’s be honest, has become quite the bore to see nowadays. Even with the likes of the EA500 or the Hexa which are quite unique in a sense that they are tuned differently from the market, the Galileo fills a segment that we have not seen anyone target in a while. The closest IEM that I can think of that reminds me of the Galileo are the Etymotic IEMs. They’re smooth, clean and reference-like IEMs that are adored for how clean they sound. And I personally believe that the Galileo is a progression of that sound but further improved for one simple fact: it’s so damn smooth. And for that, I absolutely respect the madlads at Letshuoer and Timmy of Gizaudio for giving us the smoothest and most neutral sounding IEM under $200.

Thank you so much for taking the time to read my review. If you would like to see more of my content, please consider following my Facebook page and my other social media accounts:

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Have a nice day, and enjoy music!
Last edited:
Such an impression is created .that people buy such headphones on purpose, without reading reviews. Is it really so nice to listen to headphones with music chewed in a black mouth? The only plus of these headphones is very beautiful.
Incredibly detailed and well-written review!
What an awesome review. I'm more than satisfied that I bought mine today.


New Head-Fier
Letshouer X Gizaudio Galileo Review: When stars align
Pros: 8khz range done well that it doesn't sound harsh
Great build and design
Great stock cable and tips
Amazing Warm Neutral Tuning without making the mids boring
Clean overall sound reproduction
Cons: Shell maybe a bit too bulbous feeling
Some may find this boring and without sparkle
The included case is hard to open
Letshouer X Gizaudio Galileo Review: When stars align

|| Introduction ||

Letshouer is back with a new release in collaboration to a well known audio reviewer Timmy Vangtan of Gizaudio. Named after the renowned astronomer, physicist and engineer, Galileo Galilei, sporting a dynamic driver and a Sonion balanced armature and priced at around the $100 price range, can the Galileo be a relevant set as Galileo is in modern astronomy?

|| Disclaimers ||

We don’t consider ourselves as an audiophile enthusiast of the hobby, therefore the terminology and the overall review will be more mainstream.

  • We prefer to keep our reviews simple without too much confusing lingo and terminologies

  • This review set is a part of a review tour and was sent free of charge in exchange for an honest review. There is no material or financial incentive for us to do this review. We guarantee no exchange has been done by both parties to influence or sway our opinions on this product.

  • My thoughts and opinions are of my own. My experience will entirely differ from everybody else. The contents of this review should not be considered factual as this hobby heavily leans on subjectivity. YMMV.

** Huge thanks to LETSHUOER and Sir Neil Niño Clark for giving me the opportunity to participate in the tour group for this item.**

| Packaging |

The Galileo comes in a compact, no-fuss box with an art of the night sky and Gizaudio and Letshout branding along with the name of the product with other design highlights.



| Unboxing & Accessories |

Unboxing the Galileo is really straightforward. Design of the box is really nice with minimal and professional branding. A couple layers of boxes in, reveals the IEM drivers themselves and the provided plastic square case enclosed with foam.Paperwork is also present within the box for additional information.

The provided case has a rubber coating and houses the rest of the accessories, that being the 4-core copper silver-plated 2 pin cable with a 3.5mm termination, 6 pairs of eartips and a nifty cleaning brush for your IEMs.

I’d like to note that the case is weirdly difficult to use and work. The provided case needs a specific obscure procedure just to open it (squeeze the dimension where the latch is and open the latch upside down). Seeing as this is just a freebie case I don’t mind as much but a better implementation would be nice.


A pretty simple unboxing is always a good thing. (Except for the included case that is)

Item Breakdown:

The IEM themselves
Rubber-coated plastic case
6 pairs of standard eartips(S,M,L)

| Build & Driver Configuration |

The Galileo is made out of a 3D printed resin with a is really light but not too light that it feels cheap in the hand. To be honest, I was taken aback at first for how light this is seeing as there are other resin based IEMs around this price that are a tad bit heavier, helping them feel better in hand but this is still otherwise good.

The majority of the IEM shell is blue with the faceplate having this really nice design reminding me of those long exposure astrophotography shots, which fits well with this IEM called Galileo having space related references.

The bottom of the IEMs have some branding and their L and R indicators respectively not visible in the primary angle you’ll be looking at. Vents are located in the inner part of the IEM near the nozzle and the other one in the rear. The Galileo also has a flush 2-pin slot and a really mild wing/protrusion on the shells but overall a safe shape with smooth curves.

The Galileo is equipped with a 10m dynamic driver in tandem with a Sonion 2389 balanced armature drivers.


| Isolation |

These isolates as well as most IEMs but if you’re looking for something the mutes the background noise more than ANC-equipped audio products would be better suited for that use case.



| Comfort |

Despite feeling somewhat bulbous when wearing it in the ear, it is still pretty comfortable in use.
I have no issues of it popping out or having to remove them frequently to alleviate pressure. Speaking of pressure, pressure build-up causing the so-called “occlusion effect” is average (which is almost the case of any IEM besides those exceptionally bad ones).

**Tested using stock translucent eartips(small) through the Zishan U1(ESS Variant) | Venture Electronics Avani Dongle Dac | Straight to the phone(Qualcomm Aqstic Audio)**

|| Sound ||

A brief overview of the Galileo’s sound is what I call a “laid-back safe sound”. The Galileo is one of the only few IEMs that I found to execute the 8khz region which I’m particularly sensitive to and which matched my tastes.



| Drivability |

These are pretty easy to drive with the current gear I’m trying these on and can be easily be powered by your standard phone

| Bass |

The bass on here is good and well controlled with ample amount and punch but I think a decent amount of people will be dissatisfied with how the midbass hits. There is no bloat and is overall a clean performance but the Galileo could benefit with more grit and texture.

| Mids |

Instruments feel full, lush and natural with great vocals too. Female vocals tend to be a bit more forward than their male counterparts as per my experience depending on the song. They can compete with other frequencies and not lose their cohesiveness.

| Highs |

Highs are pretty tame which can deter other people looking for sparkle but I do like having this non-fatiguing sound. Sibilance is not an issue here which is a huge point in my book and shrillness is non-existent. Details are good, allowing me to pick out minute things on songs pretty easily. Transients are okay and extend pretty well as well as air being a good performance for this set.

| Technicalities |

These perform like any most IEM I’ve tried, which is not a bad thing per se but nothing commendable to highlight. Imaging, layering is good with a wide enough staging. It doesn't sound congested when on busy passages of songs too and performs cleanly.

|| Conclusions ||

I like this set very much despite being not as engaging as others. I really love how this sounds so clean, as well as relaxed and that 8khz range area execution is just perfect for my ears. I would recommend this for someone looking for a non-offensive sound and to those who are sensitive to the 8 kHz region similar to me.

Other than those specific demographics, I would still recommend this for IEMs around the $100 price range with its great combination of build, accessories, and sound.


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The case is simple to open. Press down on the top of the hinge as you lift the latch. Opens with zero resistance. Weird, but it works.


New Head-Fier
Letshuoer Galileo Review
Pros: An almost neutral sound signature
Looks very nice
Inoffensive sound
Lightweight and fits well in the ears
Cons: May sound very boring to some
Average technicalities
Lacks bass weight and texture
An overly protective case that feels like a Pandora's Box

There have been a lot of collaborations going on here and there, but somehow not every collaboration worked out the way we wanted. There are the good ones and the truly terrifying ones. This time, Gizaudio is taking part in a collaboration with LETSHUOER. We have the LETSHUOER Galileo, which has a design that will transport you to the vastness of space.


This is a tour unit provided by HiFiGo; I was not compensated prior to, during, or after the review. This review was loaned to me to provide an honest opinion about the unit.


The packaging has a simple yet aesthetic feel. It has numerous inclusions, and the included case feels premium; however, the case is difficult to open, and forcing it open may cause it to break. Using a flathead screwdriver or something flat and sturdy may be the key to prying these open, but save yourself the trouble because there's a trick to it. Simply apply light pressure to the case's surface and pry the lock open with your fingers.

Now what's in the box?
  • Galileo IEMs
  • An overly protective case
  • A cable
  • Cleaning brush
  • 6 pairs of eartips (3 pairs narrow bore and 3 pairs wide bore)
  • And some paperwork, and love letters you would probably need (or not).


The Galileo drivers are housed in an attractive, lightweight resin shell. The nozzle mesh looks cheap, but I hope it's durable in the long run. The IEM itself is very comfortable to wear, fits like a glove, and doesn't feel bulky. The cables feel premium and don't tangle. I find the eartips to be personally uncomfortable, especially the white ones. The black eartips are softer but still feel uncomfortable to wear.


With the market overflowing with U-shaped IEMs that really tire me out on reviewing any more IEMs, the Galileo made a difference, and the moment I plugged in these IEMs, I was surprised at how neutral they were compared to the other IEMs on the market. It has its own downsides, though, that may turn off casual listeners, which I will explain in detail below.

Lows: This would probably be the biggest turn-off for many as the bass lacks engagement and energy that a casual enthusiast might crave. It still has that presence, but it might sound dull and flat to bassheads. Subbass is almost absent and can hardly be felt. Midbass is lacking in weight and quality, which makes it sloppy and awkward in some tracks. Personally, it's still tolerable, but I think the bass is played too safe here to be adored by most listeners. However, that lack of bass adds that neutral, uncolored feel.

Mids: The lack of bass paves the way for the mids to truly shine. The midrange is clean, natural, and rich. It could be richer if more weight is added to the lows. Nevertheless, it's only my preference, but with its current tuning, I'd say the midrange is well emphasized and vocals really shine. The upper midrange is safely tuned but doesn't sound endearing. Some people, like me, might demand more meatiness in the mids to add more intimacy to female vocals and more soul and thickness to male vocals. Then again, playing it safe wouldn't be a bad idea.

Treble: The treble has a decent amount of air and clarity. It doesn't sound metallic or jarring to the ears, and it is free of sibilance. They really played it safe with the whole frequency while still having a fair amount of details.

Technicalities: The soundstage is decent but not phenomenal. It has enough width to separate the vocals from the instruments but doesn't have that three-dimensional depth. The imaging can break down vocals and instruments as accurately as possible.

  • An almost neutral sound signature
  • Looks very nice
  • Inoffensive sound
  • Lightweight and fits well in the ears

  • May sound very boring to some
  • Average technicalities
  • Lacks bass weight and texture
  • An overly protective case that feels like a Pandora's Box

While the Galileo looks very aesthetic, it may not satisfy the majority of listeners and bassheads in its current tuning. It may leave others with a boring, lifeless pair of IEMs and may not be the most competitive against the others in the market, but it's a great niche choice for those who wanted a safe and neutral tuning. These are for the absolute enthusiasts of neutral sound or for those who wanted to take a breath of fresh air from the condensed selection of U-shaped IEMs in the market right now. If you are one of Galileo's target consumers, I would highly recommend this pair, and Gizaudio did a good job with this collaboration.
against the background of the S12 - Galileo, very strange headphones.


New Head-Fier
Letshouer X Gizaudio Galileo
Pros: - Ergonomic and lightweight earpieces
- Neutral inoffensive tuning
- Well articulated mid range
Cons: - Impossible to figure out how to open the storage case without breaking it. 🙈
- Stock cable seems to restrain the IEM from unleashing its true potential.
Quick Disclaimer:
The LETSHUOER x Gizaudio Galileo I received was part of a review tour organized in my country by HifiGo. The unit was a loaner for audition in exchange of my honest opinion based on my musical taste and audio gear. There has been no monetary transaction or influence (or pressure) to write anything positive (or negative) about the IEM. The views expressed in this write-up, are solely mine and are based on my usage of the IEM for a week or so as my daily driver. The IEM can be purchased from HifiGo here:


Or from Amazon:

USA: https://www.amazon.com/dp/B0BV6WGJJC/letshuoer+x+gizaudio+galileo/

Japan: https://www.amazon.co.jp/dp/B0BV6YKL91/letshuoer+x+gizaudio+galileo/

Keeping up with the latest trend in the IEM space, Letshuoer has collaborated with GizAudio for their new IEM called Galileo. For the unversed, GizAudio is a popular YouTube channel hosted by Timmy Vangtan with focus on Hi-fi audio.

Galileo is a dual-driver hybrid IEM that has a 10 mm liquid silicone Aluminium Magnesium (Al-Mg) alloy dynamic driver (DD) paired with a Sonion 2389 balanced armature (BA). These drivers are housed in a beautiful 3D printed synthetic resin shell with a design that’s unique to each set. The earpieces have a blue colour semi transparent cavity with the faceplate patterns supposedly inspired from the Milky way galaxy. The earpieces do look like a piece of art, and thanks to the material and shape, they are lightweight and provide a good fit. The IEM comes with 2 varieties of ear tips, however, for the purpose of this review, I used a pair of Dekoni Mercury memory foam tips.


The bundled cable is a 2-Pin (0.78mm) silver plated oxygen free copper cable, available with either a 3.5mm SE termination or a 4.4mm balanced termination. The cable looks premium and seems to be well built and durable. The IEM comes with a box that looks interesting, but is quite difficult to open. The mechanism is quite simple once you’ve understood it, but the lack of visual cues makes it challenging to open.

Sound Impressions:
The overall sound signature of Galileo is well balanced, with a tad bit of emphasis on the low end. The bass response is clean and fairly well detailed. The bass doesn’t tend to bleed into other frequencies, nor does it have crazy extensions. It is natural sounding for the most part. Since I happened to try the Galileo with Kinera x Effect Audio Orlog cable, I’d say that the stock cable doesn’t really unleash the potential of the IEM. The stock cable makes the bass sound timid, whereas the Orlog gave the bass response good heft resulting in some powerful slams and overall hard hitting bass. With the stock cable however, the bass response is quite mild and I for one, felt that it could do with some more heft in this region.


The mids too are natural sounding for the most part. Perhaps the first thing one is likely to notice about the mids on this pair is how lively and natural they sound. There is a sense of lavishness in the vocals which brings out every detail with panache. In terms of tone and timbre, the Galileo performs quite well. The midrange is perhaps the region where it performs exceptionally well.

The treble on the Galileo is quite airy which provides a sense of openness to the sound. Here again, I feel the IEM is let down by the stock cable, as it tends to be a little too sharp sometimes with the stock cable. With Orlog, however, the treble is very well controlled, with the right amount of energy and a good sense of air.

The pair brings out micro details quite well and has very good imaging and separation, especially for an IEM in its price segment. Overall tonal coherence is exceptional. In terms of staging, there is good width, but the soundstage could definitely do with some more depth. All in all, it has a highly coherent and balanced sound with technicalities that are very good for the price segment it belongs to.


The Letshuoer x Gizaudio Galileo is a neutral sounding pair with good technicalities. The inoffensive tuning, lightweight and ergonomic earpieces allow for the IEMs to be used for longer listening sessions without any sense of fatigue. The stock cable doesn’t seem to unleash the true potential of the IEM (IMO). All in all, I’d recommend the Galileo to anyone who is looking for a neutral sounding IEM.


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New Head-Fier
Pros: Inoffensive sound
Beautiful shell color/design
Top notch comfort(YMMV)
Decent Midrange
Cons: Lacks extension on both ends
Sub Bass quantity and texture
Stage depth


I received this is unit as part of tour that was organized by HiFiGo and @gadgetgod . As any other disclaimer goes, I try my best to not be influenced by others and I do not get any monetary benefits out of this.
If you are genuinely interested to buy, go to LETSHUOER X GIZAUDIO Galileo.

I have great respect for Timmy Vangtan for his work and this is his first collab. Naturally I'm excited to try out.

First things first, this is gorgeous looking IEM, the pattern on the faceplate is something to adore. As soon as the look was revealed I was hooked.

Sources used:
Samsung S21/Laptop
Ibasso DC03 pro
Ibasso DC04 pro
Fiio Q5s TC
Apple music/Tidal

Build and Comfort:
IEM looks quite good built, no loose contacts or rattling anywhere. The face plate looks gorgeous and it is unique to each set.
Wearing comfort on these are really great to me. I put these on for couple days, almost 8 hours continuous wear for calls and music and these did not fatigue me at all. (Used JVC fx11 tips)



I would describe the sound signature to be leaning towards neutral with some warmth. The low end frequency has a bit of boost but is close to neutral. The bass does give a punch when called for and doesn't interfere or bleed into the mids. It lacks sub bass extension but being neutral I wouldn't expect much. I love my bass so this felt a bit underwhelming at times. The mids are the highlight in this set, it is forward organic and clean. Both male and Female vocals sounds fantastic on this set. Vocal centric songs shine with these. The treble is devoid of any shimmer, very smooth, has decent detail levels. It lacks the bite and air but again being neutral this is expected.

Technicalities are good for the price, Sound stage is wide but not deep. Imaging and separation on point.


Final Thoughts:
Beautiful set, both look wise and sound wise. A great choice for neutral fans. Timmy did great on this set.


100+ Head-Fier
The Echo of the Universe
Pros: Balance-neutral sound signature
Smooth and soothing sound presentation
Decent detail retrieval
Sound stage
Relaxed and non-intrusive fit and wear
Gorgeous faceplate
Minimal BA timbre
Cons: Tamed trebles might lack grit and bite for some
Texture of instruments are somewhat lacking (nitpick)
A protective box that is almost impossible to open without injuries!
were notably prolific last year, indicating a trend of increased partnership among individuals and audio companies. Some of the crowd favorites are HBB (Hawaian Bad Boy) and the notorious Crinacle.

And now, the time has come for Gizaudio to shine! The face of Gizaudio is Timmy Vangtan. Actually, he is one of my go-to Youtubers. And even if we don’t always agree on the gear he reviews, watching and listening to him is chill and enjoyable.

Today, we will be taking a closer look at the Galileo hybrid setup IEM, which features a smooth and neutral-balanced sound signature that I personally prefer over other sound profile. The IEM takes its name from Galileo Galilei, the Italian astronomer, physicist, and engineer, although, as Timmy explains in his video, the name is actually inspired by a genius detective from a TV series named Galileo, rather than the astronomer. The IEM’s name also has astrological connections that tie into its overall concept.

Alright, let’s not waste anymore time and delve into the vast expanse sound of the universe.


  • The gear on hand has undergone at least 10-15 hours of use before it was assessed.
  • No EQ is ever applied in my reviews.
  • For the sake of convenience, I try my best to use a stock setup. Not everyone has access to personal ear tips or cables. If personal ear tips, cables, or accessories are used, you will be notified.
  • As I try to be objective, my claims inevitably will be subjective and biased to my personal preference. I cannot stress more that you should take this with a grain of salt for we have different perceptions to sound and what we hear.


Configuration: 1 x liquid silicone surround dynamic + 1 Sonion 2389 BA
Impedance: 14ohms
Sensitivity: 104db
Freq response: 20hz - 20khz


The packaging is straightforward and displays a simple front design featuring astrological elements, along with a tagline that reads “The Echo of the Deep.” The relevant companies and distributors, including Letshuoer, HiFiGO, and Gizaudio are clearly indicated. The back of the packaging displays the technical specifications. Upon sliding the packaging, the inner box is revealed, and upon unboxing it, the IEMs themselves are revealed, accompanied by a protective case that can be quite tricky to open.

These IEMs are nothing short of stunning, with a grand and breathtaking design that is sure to turn heads. They are absolutely gorgeous and a feast for the eyes. While my wife is particularly into resin design, having made some beautiful swirl designs herself, the colors chosen for these IEMs are both neat and well-thought-out, with each color complimenting the others perfectly. Though there may be no secret formula to this stunning design, I simply can’t ignore the fact that they are a true sight to behold. These IEMs are definitely a visual treat, and their beauty is sure to be appreciated by all.

In the box:​

  1. a pair of Galileo IEMs
  2. the sturdy protective case
  3. cable
  4. paperworks
  5. cleaning tool
  6. 3 pairs of medium bore tips (stiff, white in color)
  7. 3 pairs of medium bore tips (softer, black in color)



Out of the box, the Galileo boasts an impressive neutral sound signature, with an underwhelming low frequency range and a well-defined midrange that provides a good sense of details and focus. The treble is a bit restrained but not to the extent that it sounds veiled or concealed. We shall delve into this further in due course.

In the facets of technical performance, the Galileo is acceptable and decent. It has marked several aspects in my book.

After conducting some A-B comparisons with my other IEMs, it is evident that the Galileo has a considerably wide sound stage, with many elements positioned noticeably to the left or right, yet not to the extent of sounding holographic. The stage profile is more prominent in width than in depth or height, and imaging is remarkably clear, with certain instruments placed in locations that are perceptible to the ears. Elements are also easily discernible and accurate in their positioning. The coherency between the DD and BA drivers is excellent, with no discernible sync issues, and the speed is commendable, although not the fastest I have encountered. Overall, the Galileo exhibits a laid-back character, rather than sounding agile and energetic.

Tonality and timbre are spot on for a hybrid setup which usually succumbs to DD configurations sounding more natural and organic. Instruments retain their significant timbre, sounding natural but are presented in a smoother sound without the compromise of being unnatural.

Breaking down the frequency range…

The Galileo presents a noticeably lean bass with a tight delivery, which will likely appeal to discerning listeners who prioritize clarity of details and nuances. Although this presentation may come across as less engaging, the Galileo manages to avoid sounding sterile and overly clinical. Drum kicks and bass guitars have reduced texture and details. One example is the bass solo in "Daft Punk's "Fragments of Time" does not exhibit the same level of detail as I have observed in other, more detailed IEMs.

The midrange of the Galileo exhibits a pleasing smoothness, with well-balanced weight and body. The upper midrange is not emphasized, resulting in a passive sound presentation. Instruments in this range maintain good presence without sounding recessed, imparting a touch of warmth to the overall sound. While some may find the tuning of the midrange too safe, it remains proper and commendable.

The treble is easygoing, not too sharp, and laid-back - perfect for those long listening sessions. However, poorly mixed tracks can leave the treble sounding a little dull, which is a common problem being safely tuned. Personally, I opt for a bit more energy in my cymbals and hi-hats, but I must say, there's no pesky sibilance to be found here. Despite the subdued nature, there's still plenty of detail to be found. Nevertheless, neutral sources will somehow open the treble by a very negligible margin.


The Galileo feels like an old shoe -- super comfy! But, you know how it goes with fit, right? For me though, it's like a second skin, the rounded design doesn't poke or prod anywhere and the weight is just right for when I'm out and about. Plus, I can wear these babies for my on-stage gigs without any fuss, going for 3-4 hours straight with only a few quick breaks in between.


I will be comparing the Galileo to an old time favorite of mine which has a similar sound profile, configuration, and somehow, a close price point - the Kinera Idun Golden 2.0.

Vs Kinera Idun Golden​

The Idun has a similar neutral signature to Galileo with some pros and cons. From a technical point of view, the sound stage is particularly narrower with Idun which results in less discernable imaging. Speed is almost on par on both IEMs but Galileo can be perceived as rather slow because of its relaxed sound profile. Vocals, on the other hand, are forward with Idun, thus portraying engagement on vocal tracks and a lot of instruments are much more audible and upfront and in very rare cases, sometimes, can be overwhelming to some. Overall, the sound profile is quite similar and carries a different methodology depicting Idun as the bright and colder pair and Galileo as the smooth, laid-back, and warmish pair. Do take note that these findings are nitpicks aside from the apparent difference in sound as I’ve just mentioned.

With a $50 price difference, personal preference plays a role in the decision. If you are a fan of neutral sound and would rather spend that extra $50 on a date with your sweetheart, then get the Galileo.


  • Questyle QP2R
  • Hiby RS2
  • Ovidius B1
  • LG V30 quad dac with Centrance Dacport via Hiby music app
  • Oppo A94 with Centrance Dacport via Hiby music app
  • Oppo A94 with Ifi Hipdac v2 via Hiby music app
  • Macbook pro 2011 with Centrance Dacport via Foobar
  • Macbook pro 2011 with Ifi Hipdac v2 via Foobar
  • Tidal Masters
  • Qobuz Studio
  • Apple Music



Here are some tracks I usually listen to when reviewing:

That’s the way of the World by EWF
Africa by TOTO
The Girl in the Other Room by Diana Kral
Balmorhea album All is wild, All is Silent
Sila by Sud
Smooth Escape by D’Sound
Never too Much by Luther Vandross
P.Y.T by Michael Jackson
Ain’t no Sunshine by Eva Cassidy
Shoot to Thrill by AC/DC
Another one bites the Dust by Queen
Good times bad times by Edie Brickell
Alice in Wonderland by Bill Evans
Ain’t it Fun by Paramore
Redefine by Incubus
Far Away by Nickelback
Lovesong by Adele
Lingus by Snarky Puppy
Harvest for the World by Vanessa Williams
Love Bites by Def Leppard
No Such Thing by John Mayer
As by Stevie Wonder
Whip Appeal by Babyface
Ain’t Nobody by Chaka Khan
Futures by Prep
Landslide by Fleetwood Mac
Every Summertime by NIKI
SADE tracks
AC/DC tracks
Queen tracks
Daft punk
Joe Hisaishi

And many more… I always listen to High resolution format, being the least quality 16bit/44khz FLACS be it offline or online.


In addition to its stunningly beautiful appearance, the Galileo boasts impressive sound quality, with a bit of trade-off in technicalities, sadly. Although its sound profile may not be particularly impressive for bass or treble enthusiasts, the Galileo is designed for those who prefer a flat, yet smooth and fluid audio presentation. Its unexaggerated sound profile prioritizes the clarity and balance of all sound elements. So, if you appreciate a polished and precise audio quality, the Galileo is an excellent choice.

Galileo enters a very congested price bracket with some crowd favorites like Dunu Titan S, Truthear HEXA, IKKO OH10, TRI Starsea, Kinera Idun Golden, and for me, personally, it still manages to be fairly exceptional in its own right. I must hand it to Timmy for collaborating with Letshuoer for making this brilliant pair.

I would like to thank the folks from HiFiGO and Neil Nino Clark for facilitating this group tour in our country. Cheers and catch you on the next one!

Where to buy:

PRICE: $110​

Last edited:
@Ace Bee thanks mate!! I'm a fan of yours and it's an honor to receive a compliment from you.
Ace Bee
Ace Bee
@RemedyMusic I'll send you a pm regarding my detailed observations soon :)
@Ace Bee sure thing! Looking forward to it. :)


New Head-Fier
Space Out
Pros: -very good femal vocals
-instrument timbre is almost on point
-smooth, relaxed, neutral tuning
-Pretty shells, good cable, and a case that is built like a tank. A win for the price.
-Very nuanced without being fatiguing
Cons: -not for bassheads
-Bass may lack texture and engaging factor
-Perceived "air" may be lacking for some peope especially treble heads
-Cable angle can strain outer ears


This is a tour unit in the Philippines and provided by our friends at Hifigo. No compensation was given. I may be biased because I heard the prototypes when I was still in Japan.
Since this is a review unit, I was not able to spend more than a week listening to the Galileo. But I think it is enough for me to write this much. I spent most of the week listening to this beauty. We have different preferences, and so my take might be different from yours. Please cross reference reviews online. Lets start.

-Shanling M3X using UAPP, Hiby ang stock player

-stock cable

-stock tips, medium size

-Volume measured and listened at 75-78 dbs.

I grew up listening to 90’s music. Alternative, punk-rock, screamo, rap, Philippine OPM, Anime songs, JPOP, KPOP, metal, reggae and a lot more.
The artists I regularly listen to are:

Incubus, 311, BMTH, Matchbox 20, The Goo Goo Dolls, Paramore, Polyphia, The Calling,, Babymetal, Metallica, Slipknot, Bon Jovi, Coheed and Cambria, Deftones, Red Hot, Green day,

⭐OPM(Original Pinoy Music):
E-heads, Slapshock, Parokya, Urbanddub, Up Dharma Down, Bamboo, IV of spade, Kamikazee, Rivermaya

IU, Yoasobi, Yorushika, Milet, Reona, Maroon 5, Coldplay, Bruno Mars, Ed Sheeran, Taylor, Dua Lipa, Oliva Rodrigo, Billie Eilish

Carpenters, Micheal Learns to Rock, Celine Dion, Bob Marley, Sitti, Daft Punk, Pink Floyed, Earth wind and fire, Amber rubarth, Sia, Yosi Horikawa

I listen to more, but I can’t just list them all here.haha. Just giving you an idea on what I listen.



When you unbox the Galileo, you are greeted with a case. I very sturdy case which needs prying to open them. Maybe you can try with your own strength, but I highly advice against it hahaha. In the box you get:

💥Carrying Case- which is again, built like a tank

💥Cable – which has very good quality for this price. Similar to the Dioko cable I think

💥1 set of SML narrow bore eartips

💥1 set SML wide bore eartips

💥A small broom, or whatever that is haha

💥Ofcourse the IEMS.. :)

The design is just amazing. Simply amazing. If you have seen Timmy’s video, he mentioned that each set has a unique pattern. The colors are very vibrant and detailed. The inner shell is a luminescent blue that allows you to peak what’s inside. Be dazzled.

Build? Its good. The pins and connectors are not loose and they just feel very premium.

Comfort level is also nice! Very comfortable to wear and I didn’t notice any issues with fit. However, the cable curve angle is too “V’ shaped haha. Yes. Because of this, it strains some parts of my outer ear after hours of listening. Take note of this. You might want to use a blower to make the angle a more “U” than a “V”, or use another cable if you have some spare.


I like this set so much. The tuning is heading to a relaxed neutral with very good micro details in the treble. I cannot emphasize enough how detailed this set is. At times, it made me regret my past purchases haha.

Bass is just a tad north from neutral, but still within the boundary of being called one. They are not flat and yet the bass supports the mids with warmth and macro dynamics. This area might be my least favorite, but it doesn’t mean the low-end is bad. It resolves details well but just lacks a bit of physicality and visceral impact. The Galileo is still able to resolve drop tunings but not at head bobbing levels. I must consider that this is Timmy’s tuning decision. It is interesting to note though that even if there is lesser mid-bass, the subbass is ever present to fill the gap. You can still get enough fun and macro dynamics from the Galileo. The level of the low-end compliments very well with the mids and upper mids making it sound fuller, still.

Mids on these are the best part. Simply the best. They are clean, resolving, and devoid of any bleed from the bass. Yes, there is a bit of mid-bass emphasis, but it’s not enough for me to call it intrusive. Female vocals are heavenly, and they just sound so good. All my Kpop and Jpop tracks were so engaging to listen to, and I feel like I am being immersed in a room with them. Male vocals do not sound lacking either. But I can understand if some people might want more meat and authority in lower pitches. In Marron 5’s “Sugar”, it had some very realistic space, very nuanced and detailed.

Let’s talk instruments because the Galileo is doing wonders here. You are presented with a natural tone on guitars and snares. Not to mention the resolving ability of the drivers, I could hear the last pluck of strings from Incubus tracks. I will talk about it more in the technicalities part. Going back to instruments, the peak around 3k is the G-spot for me in the presence region. The Galileo can retain the aggressiveness of distortions whilst being bearable at the same time. I have never-ending time stamps that I didn’t bother writing because the Galileo just does everything so perfectly. In the song “Song for the Suspect” by Franco, those guitar riffs was just soooo good.. ughhhh.

Treble might the one that most people worry about especially how it looks like on graphs. I was worried too. Having heard the prototypes, it was one of my issues of the set. However, Timmy has a solid tuning direction. He wanted to prove something and experiment on a tuning that very few people have tried. I believe he was aiming for a sibilant free set, but is still detailed. At first, I thought it was hard and almost impossible to achieve. Well, I am here to tell you that all those months of fine tuning the Galileo, Timmy has manifested his intent. The treble is indeed full of micro details and is devoid of any harshness and sibilance. Yes, you get less air, so what? I thought they wouldn’t sound good, but Timmy has proved me wrong. The treble on these is phenomenal to the point that “natural” is an understatement lol. I don’t really know what is going on because on graphs, the upper treble looks muted. But in my actual listening experience, there is enough nuance and definition of notes. Snares get enough snap and crispness. Cymbals sound full and the decays pretty well.

The technicalities on this is well done for the price of $110. Imaging, resolution and separation of instruments might be the best in this price point. I am continuously amazed by how it managed to extract details that were a bit quiet in some of my sets. I think the level of this might land on the Timeless on Timmy’s scale. As I have mentioned on my video, I get the feeling of listening to the Dunu Sa6 with the Galileo. Having said that, they really do sound detailed and I am completely puzzled how the Galileo is able to do it with less air in the upper treble. Center imaging for vocals are on point and it gives the impression that other instruments are floating around your head.


✅Very smooth, relaxed, neutral tuning
✅Very heavenly vocals especially females
✅Instrument timbre is almost on point
✅Very nuanced without being fatiguing
✅Pretty shells, good cable, and a case that is built like a tank. A win for the price.


❌not for bassheads
❌Bass may lack texture and engaging factor
❌Perceived "air" may be lacking for some peope especially treble heads
❌Cable angle can strain outer ears

-Please be reminded that my scoring is always based on its price range.

BASS - 2.5
MIDS - 3
TECHS - 2.5

=14 ( S rank,exceptional. A must buy for this price if you have the cash)


⏯️PLANARS (Dioko, S12/S12 pro, Zetian Wu)

The Dioko might be the closest when it comes to tuning as it is quite neutral. However, the treble peaks and unevenness of the Dioko might not please people who are sensitive in the upper treble. The Galileo offers a smooth treble and a bit more low-end to compliment the whole signature. I would easily pick the Galileo over the Dioko.

As for the other planars like the S12/pro and Zetian Wu, the tuning is quite different because these planars have a balanced to a mild V in tonality. They offer more fun and engagement. The Galileo is tuned pretty relaxed in comparison and offers a smoother experience.

Here we go. The mega5p is my current reference set. I use it before listening to other sets so that I can distinguish the tuning and peaks of an IEM. The mega5p has a bit of recession in the upper mids, around 3k-5k. What this does is, instruments don’t get enough presence in the MEGA5p, but are really clear with the Galileo. Both actually share the same glide from bass to lower mids, and the MEGA5p has a bit more air. Technicalities on the 5p are a tad better because it has more BAs, and it also has more depth when it comes to 3D staging. However, the Galileo is no slouch and I can safely say that they can also be your reference set if you are on a budget.

I feel that the P5 is more detailed in the treble, but it also causes some problems for people who aren’t treble heads. Your mileage may vary and the Galileo is just straight up more comfortable in long listening sessions. The tonality is also quite different because the P5 offers more fun and engagement because of the elevation of bass and treble. As you can see, the Galileo is challenging sets that are twice or thrice its price.

⏯️Acoustune Rs1
I don’t know why it’s here haha. But since I really like this set, heck why not. Since I really like the resolution and details of the RS1, I am surprised that the Galileo tied up when it comes to this area. The tonality might be the biggest determining factor for both. The Galileo is near neutral and the RS1 is warm balanced. Very different. But I am glad that I am able to find a set that is on par with the RS1 in terms of resolution in the same price range. Galileo is a steal.

⚜️My Unboxing and first Impressions video here:


The Galileo can easily be a reference set for people who are on a tight budget. I cannot think of other sets that can come close to the performance of the Galileo in terms of a natural presentation. Well, planars might offer more excitement and spice, but the Galileo nails it to the ground when it comes to length of listening sessions. They are smooth, non-fatiguing, yet detailed in every way.

I think Timmy hit the jackpot on this one, albeit not from luck.

But from intent, good philosophy, and the thirst for exploration.

Let’s space out together. 😊

⚜️WHERE TO BUY: non- affiliate

HiFiGo Store:https://hifigo.com/products/letshuoer-x-gizaudio-galileo

Amazon US Store:

Amazon JP Store:

AliExpress Store:
I love the shell design. Only if it had a basshead tuning.


New Head-Fier
Pros: Balanced and natural sound.
Neutral profile throughout the frequency band.
Great resolution and clarity.
Vocal clarity is amazing.
Cons: Need some more heft and depth to the stage.
Galileo is a new dual-driver hybrid IEM designed by Letshuoer in collaboration with Gizaudio. Gizaudio is a famous HiFi audio channel on Youtube hosted by Timmy Vangtan. Galileo is the first collaborative project of Gizaudio. It’s a dual-driver hybrid pair of in-ear monitor with 1 10mm liquid silicone dynamic driver and a Sonion balanced armature driver on each side. I got to try the Galileo as a part of review tour organised in my country by HiFiGo. So I would like to thank them by including their product link in this review(non-affiliated).

The unit goes ahead to the next reviewer after my turn, Let’s begin with the review.

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Design & Build:-
The pair has got beautiful looks with designer face covers. The advertisements for Galileo states that this is an ink-painted design. It looks beautiful and has a good captivating factor. Like the design here. The inside portion of the shells have a blue-coloured semi-transparent cavity. The pair has an elegant look and features a lightweight body with ergonomic shape. It provides me with perfect fit with proper isolation from the outside sounds. I am using stock white color silicone ear tips. The black colored ones increase the bass a bit, I personally like the pair more with the stock white colored ear tips.

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Sound Impressions:-
Galileo has a neutral sound profile. All three frequencies have a balanced response, lower-end, midrange, highs, perform in-line with each other. None of the frequency section feels over-emphasized or over exaggerating. It maintains a good balance, the low-end has got a clean sound that complements the other frequencies well. Midrange captivates you with its exceptionally rich tone and definition for vocals. Treble region extends well and has a clean, refined presentation. Galileo has a natural tone to its sound output, The vocal presentation on the Galileo is exciting. It produces crisp, well-defined, well-textured vocals that have an upfront presentation. Letshuoer and Gizaudio have done a great job with the Galileo, the pair shows accurate placement for different instruments even in busy tracks. Instrument imaging and separation is top-class on the pair. The pair produces micro details evenly and shows good resolution throughout the frequency band as well. I find the bass response to be quite good. It has a bit of boost in the mid-bass region that allows for a little punch in the lower end. It extends well into the sub-bass region, delivering a quality bass response.

As per the brand, they have designed some physical and electronic frequency crossover tech for the Galileo. And it actually works in its favor, it sounds coherent and feels like a single-driver producing high-resolution sound. Resolution on the Galileo is superb. Soundstage has got good width and height. Depth could have been improved that would give a more 3D presentation to its sound.
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Final Words:-
Overall, Galileo sounds quite nice, it has a natural profile to its sound. It delivers good clarity, good resolution, and maintains a smooth presentation. It’s very comfortable to listen to even for extended hours. The only thing I feel could be improved a bit would be some added depth to the stage for a more 3-dimensional experience.


1000+ Head-Fier
Letshuoer x Gizaudio Galileo: Smooth Criminal <3
Pros: Smooth and inoffensive sound.
Rich, Clear midrange response.
Lovely vocals, well-textured, and rich in tone.
Treble region sounds lively and open. It extends nicely as well.
Has a good amount of details.
Looks beautiful.
Fits nicely with good isolation.
Cons: The soundstage depth could be better.
I personally prefer some more punch to the lower end.
The last earphone that I tested recently had a lovely midrange presentation. I am talking about the Sennheiser IE200 here. I just loved the absolutely lovely vocals that the pair rendered and brought my music library to life. I was just enjoying the vocals out of the IE200, and just then, I got the Letshuoer x Gizaudio Galileo to test. I started this writeup today about the Midrange discussion because Galileo is another pair with an absolutely lovely midrange response and also renders beautiful vocals. This is the first collaboration for Timmy from Gizaudio(A great guy to talk with), and it’s an exciting one, at least the hype all around suggests this(so does the pair). How does this beautiful dual-driver hybrid earphone sound? I am going to share my impressions on this today, so let’s begin with the unboxing part first.

A short disclaimer:-

The Letshuoer x Gizaudio Galileo was provided to me free of cost by HiFiGo for the purpose of this review. I would like to thank the team for the sample, a free sample won’t mean I will say wrong or post wrong information about the product, I assure all the impressions in this blog are completely my own based on my experience with the set. They might be biased based on my personal preference which is mostly balanced with a hint of sub-bass boost. At the time of this write-up, the pair retails for 109.99$, you can check out more details on the HiFiGo website from the link below. It’s a non-affiliated link.


Also available on Amazon US & Japan stores(again Non-affiliated links):-

Unboxing Experience:-

Galileo has got a very thoughtful design on the package. Thoughtful in the way that it shows the limitless Space that our famous astrologer liked to explore through the image on the front of the outer cover. It also has the slogan “The Echo of the Deep” printed right above the image including the partner brands here(Letshuoer, Gizaudio, and HiFiGo). Technical details are printed on the back of the package. The design is thoughtful yet simple in a white-colored package. Inside we have a carry case that is super hard to open the very first time, the pair itself, the cable, and a bunch of ear tips, actually six pairs of silicone tips. I have shared the unboxing on my Youtube channel, you guys can check that out from the link below.

Package Contents:-

>Letshuoer x Gizaudio Galileo IEMs.

>Stock cable(I got 4.4mm).

>Six pairs of silicone ear tips(Three white, Three black).

>User manual.

>Carry case that is super hard to open.

>Cleaning tool.

Design & Build Quality:-

Galileo looks spectacular, the pair does justice to its name with beautiful ink-painted face covers. As per the brand, the face covers depict the Milky Way and the endless space with its beautiful rendition of different colors including tones of Blue, Orange, with Black, and White colors. Inner cavity has a transparent look to it with a dark blue color that matches the face covers. Since the face covers are ink-painted, each unit has its own unique design and texture. If you ask me, the pair looks beautiful and pretty well-built. The shell has a comfortable lightweight build and provides a comfortable fit, atleast to me. The stock tips do the job for me, I am using the White colored ones. They tend to serve me with a comfortable fit and provide me with proper isolation from the surroundings as well.

Coming towards the cable, we have a 4-strand cable with a soft in-hand feel. It looks well-built and does the job for me. It has standard 2-pin connectors. My unit here has a 4.4mm termination that works well with my Sony ZX707. Accessories included in the package also have a solid build, the case particularly is super hard to open. During my unboxing shoot, It took me about 15-20 seconds just to get the damn box open lol.

Driving the Galileo:-

Galileo is fairly easy to drive. It works well with my colleague’s Samsung Galaxy M31s(with its stock 3.5mm output). Obviously using a USB DAC/AMP or dedicated Hi-Res player improves the output with its high-res audio signal decoding capabilities. Most of my listening for this review is done on Sony ZX707 and Astell&Kern SE200. ZX707 felt more lively with its rich tone and the SE200 felt more detailed with its output.

Sound Impressions:-

Have you ever heard of an IEM that sounds completely effortless? Like you through anything at that particular set and it sounds simply amazing, it swifts through the entire frequency band like a smooth buttery journey. The pair maintains a neutral-ish sound profile with a hint of boost in the mid-bass region and a lovely midrange performance. It presents the treble region in such a smooth manner that it instantly holds my heart with its inoffensively clear sound. Honestly speaking, I can’t listen to growling or heavy metal music in all sets as I feel tired and a bit fatigued after just a few minutes of listening. But with Galileo, I literally spent hours listening to RHCP, Linkin Park, Disturbed, and Infected Mushroom with no issues at all. Effortless is the appropriate word that instantly came to my mind whenever I started to write down my notes for Galileo.

The pair sounds open and quite lively. I mean, the treble region extends well and presents a clear, crisp definition and an open, wide soundstage. Upper mids and the lower-treble region are a little pronounced delivering a lovely vocal presentation. Both the male and female vocals sound simply amazing on the set. They have good clarity, and excellent textured presentation, and create an immersive connection with the listener with their upfront presentation. Please don’t get me wrong here, they don’t sound harsh or too into the face, they sound appropriately placed and show good resolution on them. The overall sound of Galileo has a life-like natural tone to its presentation. It doesn’t sound colored anyway. Instruments are very well-separated, and they show good resolution, especially in the mid-range. The midrange on the Galileo absolutely holds the charm, it sounds mesmerizing. Listening to Vocal-centric or acoustic-based tracks on Galileo is amazing. They sound rich and nicely detailed. My personal favorites, Damien Rice, Boyce Avenue, Gloria Gaynor, Toni Braxton, etc sound super good on the Galileo.

Talking about the lower-end, the pair maintains a clean and refined presentation. It has a hint of boost in the mid-bass region showing a quick and fast response. It isn’t very punchy or deep-hitting but has a precise response. For bass-heavy tracks, the pair doesn’t sound muddy at all, it maintains its clear response throughout the frequency band. Sub-bass region also has a decent response with a smooth rumble which is easily heard in bass-heavy tracks. Although, for my personal preference, I would love some more punch and hit in the lower end.

Coming on to the dynamics part, I find the pair to have a good level of detail in both micro and macro dynamics. Micro-details are produced well, and the macro transitions are also smooth and recognizable. The instruments and overall sound presentation is pretty clean and well-separated. It doesn’t sound congested at all. The pair produces a good width in the soundstage. Although, for my personal preference a tad bit more depth in the output would have given a more 3D-like presentation.

To summarise the sound of Galileo, It has a rich, life-like natural tone to the vocals and instruments. The pair delivers lovely clarity and resolution with its dual-driver Hybrid setup. Probably the two things that I think could be improved would be, I would love some more punch in the lower end that instantly improve the depth of the stage.

Well, that’s all I have to say about the sound of the Galileo, let’s move ahead and I will share a short comparison with my recently reviewed Sennheiser IE200.

Sennheiser IE200 vs Letshuoer x Gizaudio Galileo:-

IE200 houses a single 7mm micro dynamic driver that produces the entire frequency band. That’s a lovely set with a mid-focused sound. You can check out my review of IE200 on Head-Fi over here and on Youtube over here. Here’s my short comparison with Galileo.

>IE200 has a little warmth to its output, Galileo sounds more neutral in its tone.

>IE200 with JVC Mushroom or Azla Sedna Earfit Light tips have more punch in the lower end, Galileo sounds more towards the neutral sound in this regard. Please don’t get me wrong here, it doesn’t sound lean, it’s just not as hard-hitting as IE200 with those tips.

>Galileo delivers life-like natural vocals in its sound. IE200 isn’t very far behind, but still, Galileo sounds more natural and lively.

>Galileo has wider soundstage, IE200 sounds more 3D with more depth.

>Galileo has a cleaner, more resolving sound. Its treble is also livelier compared to the IE200.

I personally love both sets, I actually listen to both of them on a rotational basis. They sound super lovely to me with Galileo delivering more natural sound and the IE200 delivering a little warmth with its sound. You can choose between them based on your listening preference.

Final Words:-

Letshuoer x Gizaudio Galileo is a lovely-looking IEM. I would like to congratulate Timmy on this collaboration of his as I personally loved the tuning profile. The pair sounds natural, lively, and open. It has excellent tonality, I can assure you, you can listen to this set for hours and hours without feeling any fatiguing or getting tired at all. I mean, in the end, it is all that matters, to enjoy our music with a natural, rich tone and a good amount of details and resolution. Galileo checks all these boxes for me in the right way!!

Well, that’s all about the Letshuoer x Gizaudio Galileo from my side. I hope you guys liked this review of mine, I am also editing the video review, and will probably post it tomorrow on my Youtube. Will update this post with the link after uploading.

Thank you!!


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Great review!

One nitpick, and even Timmy made this mistake in his video. Galileo may have dabbled in astrology, but his claim to fame was as an astronomer, a scientist decades ahead of his time who advanced human knowledge by leaps and bounds.
timmy liking is more lean to bright sound signature while crin is the other way around.


New Head-Fier
Review Of The LETSHUEOR Galileo
Pros: 1. Best neutral with sub bass boost tuned (considering below $500 market).
2. Excellent control on treble mid range and bass.
3. One of the best technical performance (considering the competition).
Cons: 1. Lacking quality over sub bass.
2. Somewhat metallic trait active in the treble region.

Review Of The LETSHUEOR Galileo



A brand that has lately developed a number of outstanding in-ear monitors (IEMs) has introduced a new IEM called the Galileo. Even though they dominated the market for planar IEMs with the introduction of the S12, Z12, and S12 Pro and multiple driver IEMs like the ej07m and kinda lava, their emphasis turned to the Galileo, a 100- to 150-dollar IEM with two drivers. I'm always amazed by their IEMs, and many audiophiles also laud their tuning and selection, so I'm looking forward to their third collaboration with renowned audio critic Timmy. So let's see whether Galileo lives up to their reputation. Let's clear certain things out first, though, before moving on. I am very ecstatic.



*Since this unit tour was organised by the beautiful people at HiFiGo, I am grateful to them. And as I've said in all of my evaluations, the same is true for this one: all of the concepts I've expressed below are entirely my own, original ideas that haven't been influenced by anyone else. If interested, go to this link.
*I am not associated with the connection, and I receive no financial assistance from anyone.
*For the remainder of the review, I will refer to these IEMs as "Galileo."
*I am using different Ear-tips for convenience and better versatility.
*Finally, I will only evaluate the Galileo based on their performance, even though I will explain how it feels and seems physically and aesthetically.


The Galileo boasts a dual hybrid setup made up of a dynamic driver and a balanced armature. The system involves of a Sonion 2389 balanced armature for the midrange and high frequencies and a 10mm liquid silicone dynamic driver for the low frequencies. The design of the shell, which is constructed of skin-friendly plastic, seems ergonomic and easy to wear. The faceplate contrasts how a nighttime sky may appear with a beautiful motif of stars, however the red accent on the panel appears strange. Besides the shells, the cable is made of high-grade silver-plated wire that is oxygen-free and terminates in a straight 3.5mm socket. The cable feels the same as the one offered with the S12, which feels premium and good quality in hands. Along with the IEMs and cable, other accessories include a storage box, a cleaning tool, six pairs of eartips in each of two kinds and three sizes (small, medium, and large). According to the technical specs, the senstivity is 104dB, and the impedance is 14 Ohms. The overall harmonic distortion is less than 2%, and the frequency response ranges from 20Hz to 20kHz.



The tuning of the Galileo is based on the IEF target with a 10 dB bass shelf because the response from the Galileo seamlessly follows the target and produces ear-pleasing sound. I love how the harmen target or IEF target has been so prevalent in IEM tuning culture recently. Since only two drivers were used to create this IEM, the Galileo sounds absolutely divine. To be quite honest, I have no idea what was done. The best the driver can handle the details without sounding obnoxious has been established thanks to how well the treble behaves and tames the reaction. The amazing aspect is how well the midrange and treble are balanced; I have never seen an IEM with such excellent cooperation between these two areas. I know I may have overstated things from other people's perspectives, but I can readily speak for the fact that the impression I provided was entirely from the heart. I am exquisite shot with the voices and the instruments performing with the highest degree of fidelity. Although the bass is excellent as well, with a snappy presence and wonderful heavy smashes, the driver's limitations cause it to distort or underperform on some tracks; more on this later. Let's examine their sounds in more detail for the time being.



The treble has an exhilarating, airy tone. The information comes across as cutting and expressive without seeming offensive. I agree that the treble region frequently feels on the point of sounding obnoxious, but the tuning is shockingly accomplished better than the competitors and possibly the priciest ones. More so than any other iem could, the treble brings out the best in the BA unit. The top treble has a robust, vivid sound that occasionally takes on a metallic quality. Usually occurs when listening to certain music at excessive volumes, but other than that, I have no complaints. Although the vocals seem lively and expressive, they might not be in sync with other aspects or be too close together. Although I have only occasionally seen. Cymbal crashes or tinny sounding instruments don't sound inappropriate or objectionable since the instruments have a deep and edgy response. The bottom treble is as alive and energetic as it should be in the mix. The instruments enhance the strong prominence of the vocals. Although some people might find it lean sounding, both the vocals and the instruments have excellent note clarity. Although there are traces of a rubric and lean sound, the treble region is also expanded well and has an expressive and lively nature.

Mid Range

Vocals and instruments sound near and exceptionally clean in the mid range, creating an immersive experience. The findings don't concentrate around how tonally warm or natural it sounds, but rather how detailed it may sound while being far from being metallic. The clarity in the response of every element in the mid range sounds exquisite. A battle that Galileo continues and wins. The upper mid range has a vibrant, powerful sound that flows more naturally throughout the entire mix. When you listen to complicated songs, something magical happens: the vocals come out gorgeous and majestic, and the instruments around them enhance the effect. While the instrumentation sound clean and lush, the vocals have a distinct and forward style. The lower mid range has a position in the entire response as well, and it doesn't hold back while providing a strong foundation for the upper frequencies. To keep the higher frequency sounds from sounding lean or tacky, in my opinion, the lower midrange should sound more dull and deep, obviously if the IEM is tuned balanced or neutral. The bass lines, or any other instrument for that matter, sound too clear and resolved, lacking the depth and weight in each note that may have produced an organic or rich response. However, the lower mid range is quite lively in character. Although it doesn't sound uneven or weird, the reaction is not flawed. The instruments seem more interesting, and the vocalists have an excellent grasp of the notes. Overall, the mid range response is dynamic, immersive, and mind-boggling in terms of its clarity and detail. The mid range is the most approachable, in my opinion.


The sub bass area is highlighted in the Galileo's bass region. There is a lot of sub bass, and it has a powerful and rumbly sound. There is no indication that the bass gets overbearing or playful in the mix despite the fact that the quick attacks seem accurate and clean and make it sound more authoritative. It rotates swiftly and only acts when necessary. Despite seeming deep and resonant, the sub bass is defective due to the inadequate dynamic driver used. The flow is extremely well distributed across the bass range, but at higher levels or with more power, the driver begins to deviate from its harmonic design and distorts, which is how I also saw the See Audio Yume and Yume Midnight. I understand that most people don't listen to the bass very loudly, thus this kind of driver works great for them, but I don't want to encounter the restrictions of an IEM. I can therefore understand why bass heads shouldn't use these. When it comes to the mid-bass, the bass is sleek but detailed, and the notes hit with clarity rather than thickness. However, I believe that when you alter your perspective of how an instrument sounds live, it loses part of its integrity, which is somewhat of a problem in this case. After careful observation and consideration, I realise that focusing on one particular area does not seem to be as effective as the entire driving force of the IEM drivers working together to produce a harmonious sound. There isn't enough slam and boom in the mid bass. But it's really orderly and under control. Overall, the bass region works well enough and has enough power to sound rich and textured.

Technical Performance

The image, layering, and resolution of this dual hybrid driver IEM are great, and the technical performance is astounding. The stage has been expertly set up to provide a surround response. The elements seem distinct, and the separation is beautifully done, while the note speed is paced quite quickly. I have only seen a few, if any, BA+DD IEMs perform so well in subjects in which I had no confidence or understanding that they would be sufficient for me. Let's go into this in greater detail.


Soundstage, Sound Imaging & Separation

The stage is large and open enough to prevent confusion and anarchy in the response, and the approach has a solid sense of its surroundings. The imaging is bright and razor-sharp. I could quickly identify the direction the sound was coming from because of the effective separation, which gives each element enough room to breathe.

Speed & Resolution

Even after acknowledging that the price of this IEM may be either inexpensive or expensive, where I find that it is pretty achieved in both circumstances, the resolution is still amazing. The clarity and ease with which the details are presented reverberates across the room. A dual hybrid setup is unusual in that the notes' attack and decay happen quickly.

Sound Impressions


Tempotec V6 - The Galileo sounds vibrant and clear in the treble region when paired with the V6, and the mid range was also extremely approachable and lively. The bass has a natural sound and a strong sense of rumble and punch. I believe that the mid bass might sound more slammy and heavy. Although I noticed that the staging was more defined and the resolution was better, all the other technicalities felt the same. Overall, I believe that the combination of Galileo and V6 favours my interests.


iFI Hipdac - The Galileo sounded slightly off in terms of technicality and more tonally near when paired with the hipdac. The treble has a more jovial, constrained, but open sound. Vocals in the mid range sound more emotive and have greater weight and depth. With a slight but present smashing sensation, the bass sounds more genuine and compelling. More sub bass rumbling and punch can be heard in the bass. Although the hipdac coupling sounds like fun, it never seems to impress me. So, I don't think Galileo and Hipdac to be that fascinating.

*image was corrupted

Tracks Used

Earth, Wind & Fire - September
Earth, Wind & Fire - Let's Groove
Fleetwood Mac - Everywhere(Remastered)
Toto - Africa
The Police - Every Breath You Take
Daft Punk - Tron Legacy (End Titles)
GOJIRA - Amazonia
Fergie - Glamorous
50 Cent - In Da Club
Skrillex - XENA
Skrillex - Torture You
The Neighbourhood - Sweater Weather
Luna Haruna - Overfly
Blck Cobrv - Candy Shop
LMYM - 0 (zero)
Indila - Love Story
Marina Hoiuchi - Mizukagami no Sekai
Wayne - Not Enough


The Galileo sounds incredibly good, with such a clear and thorough presentation throughout the response, to wrap up this assessment. It seems to be fairly uncommon in IEMs like this. Of course, there are restrictions on the capability, and they also rely on one's priorities, as was already discussed. I wholeheartedly recommend this if you prefer a very detailed and resolving IEM with no offensive signature, but if you prefer too much bass and want to add eq and other effects to make the sound warmer, I can only advise you to try them first.



500+ Head-Fier
LETSHUOER Gizaudio Galileo
Pros: -
- Beautifully made, construction wise and wear factor
- Non aggressive V sound curve tuning
- Smooth and fluid dynamic transients
- Good technicalities
- Transparent and uncolored Midrange
- Strong Midbass performances
Cons: -
- The BOX! that damned box is impossible to open, lol
- Soundstage spatial spread a bit 2 dimensional
- Not suitable for gaming

In a nutshell, LETSHUOER Gizaudio Galileo has been tuned and presented as smooth sounding IEM, with not particular emphasis on specific dynamic range, just some boosting on lower frequency with Midbass, and perhaps a bit of mild suppression on upper frequency extensions, but the Midrange is pleasingly transparent and uncolored - yet still rich and satisfyingly dense with note weight.

It is without a doubt that Galileo will appeal very highly to people who love mild and relaxed sound presentation that is still analytical enough without being overly sharp. The balance of articulation and finesse is perhaps the biggest strength of Galileo. It is very easy to wear and very comfortable to use even for prolonged listening sessions. Galileo proved to be quite good as well with many type of music.

Full Details presented here on my YouTube Channel:

Get LETSHUOER Gizaudio Galileo from HiFiGo:
Amazon US Store: https://www.amazon.com/dp/B0BV6WGJJC/letshuoer+x+gizaudio+galileo

Amazon JP Store: https://www.amazon.co.jp/dp/B0BV6YKL91/letshuoer+x+gizaudio+galileo

AliExpress Store: https://www.aliexpress.com/item/1005005192950738.html
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@OspreyAndy Thats why I have a prying tool from a manicure set :D
Squeeze the box as you open it.

It opens easily.
The case is simple to open. Press down on the top of the hinge as you lift the latch. Opens with zero resistance. Weird, but it works.


500+ Head-Fier
Initial impressions on LETSHUOER GALILEO
Pros: △A matured, balanced-neutral tuning that makes the overall tonality quite pleasant to listen.
△ Impressive full range sound performance of Sonion Balanced Armature Driver.
△ Commendable quantity and quality of inclusions inside of packaging box.
△ Not a hint of sibilance nor harshness.
Cons: ▽ Inadequate amount of treble air.
▽ Wishing for better layering performance.

Here's my initial impressions of Letshuoer Galileo, Galileo is a collaboration project between Timmy Vangtan of Gizaudio (Who happens to be my online pal) and Letshuoer. We in the audio community already know who Timmy was so no need for further introduction.

Galileo has a hybrid driver set-up consisting of 1 Dynamic driver which has Liquid Silicone diaphragm which is quite similar to See Audio's Yume and Yume Midnight then a full-range BA from Sonion, a Sonion 2389. I'm quite familiar with Sonion BAs as I've tested a lot of IEMs with Sonion BAs especially from FitEars, Dunu and See Audio. These internals are rather enclosed in a 3D-moulded resin shell with gorgeously looking faceplate. The sizes of the shells are a bit large that small lug holes might have some issues on them when it comes to fitting.


Inclusions are quite impressive, from good quality hard plastic IEM case to high quality SPC cable. Good thing that they are easy to drive too that even a device with decent power output delivery can amplify it properly.


When it comes to sound signature, Galileo takes a more balanced-neutral sound profile. Certainly that this has a similar tuning with one of my favourite IEMs of all time, The BQEYZ KC2.

The bass rather focuses on mid bass than sub bass which I really prefer to give more bodied sounding on bass guitars, bass kicks and bass-baritone. This is probably one of the best when it comes to rendering on deep male vocals, it has that good depth and good amount of delineation. Sub bass have enough rumble on it that synthesisers deliver it decently.

Midrange is probably the highlight of the show. It has this linearity, transparent and clean sound that every type of vocals that I've thrown at will sound very captivating, lilting and euphonic on contralto to mezzos. Sopranos sound really good as they have this range and energy but coloratura sopranos sounds a bit compressed in my liking but I have no issues with lyrical sopranos like Tarja Turunen and Adele. The instrument sounds so natural that it is quite versatile from strings to percussion on how it was portrayed in a real-life, I've attended some Philharmonic orchestra and live concert before so I know what I'm saying about its specific timbre and tonality.

Treble is somewhat a mixed bag on this one. It's not dark sounding as per se but rather more on a balanced, safer side, neither bright nor dull and dark sounding. Airy extensions have some noticeable inadequate range on which treble heads will pay attention on it and might not be pleasing to the quantity of air and harmonics. But the good thing is that I don't hear any hint of BA timbre which signifies that mature tuning on Galileo which is one my criteria on an all BA set. Sibilances and harshness are absolutely absent on this one.

Technicalities are impressive somehow, the soundstage is quite huge for an IEM comparable to BQEYZs. It has a wide dimension, good depth and height that gives me a spacious good head room. Imaging is also commendable that it gives me a rather concave presentation on the placement of the elements like instruments and vocals. But here are some nitpicking based on my perceptible observations. It has a decent separation that gives enough spacing gaps but I wish that it has a better layering aspect on it as it struggles a little bit on some instrumental movie score tracks from Hans Zimmer and Danny Elfman. It has solid macro-dynamics and with enough sharpness on micro details. There's a cohesion performance on both drivers on how it delivers a basic envelope sound performance from attack to sustain.

Galileo is quite comparable to my all time favourites like See Audio Yume and Audiosense DT300. But I'll compare it to the GS Audio GD3B first.

GS Audio GD3B

■ Both have similar materials on their shells as it is also made of resin, shell sizes of GD3B is rather smaller as it perfectly fits well to my lug holes. They even have similar driver set-up as both of them have dynamic drivers and a Sonion on their balanced armatures. GD3B packaging is rather spartan.

■ They even have similar sound signature which is balanced-neutral but the bass of Galileo is more refined and but GD3B has a tad thicker textured compared to a more transparent Galileo. Technicalities-wise, Galileo has wider soundstage and has more rendering on detailed retrieval.

See Audio Yume Regular

■ They have similar driver set-up but Yume has an additional BA and it uses Knowles BA drivers. They even both have similar DD which is also a Liquid Silicone diaphragm. They even both have resin shells but Yume's has a smaller dimension compared to Galileo. They both have impressive inclusions on their respective package boxes.

■ They even have a similar sound signature profile, but Yume has a tad leaner texture compared to Galileo. Yume focuses on sub bass while Galileo is more on mid bass. As for technical aspect, Galileo wins in every category except for layering. Yume has a rather average soundstage width to begin with.

Audiosense DT300.

■ DT300 is an all-BA setup IEM. It uses Knowles drivers given that Audiosense has a good partnership with Knowles. It also has a resin shell but it has better overall fitting and passive isolation.

■ They are both on the side of neutrality when it comes to the tonal aspect, DT300 is more textured compared to Galileo. It has this almost uncoloured sound that makes DT300 more pleasant and so does the Galileo. Technicalities-wise, DT300 is a bit better due to superior separation and layering aspects.

As I end my assessment, LETSHUOER Galileo is definitely a mid centric IEM given how it renders the facets of different vocals and instruments in a very detailed and accurate manner. This is quite refreshing given how most of IEMs are leaning towards U-shaped tuning or following a Harmanish curve on which I'm very critical about it. I will give this one a high mark, 5 out of 5.

If you are a fan of BQEYZ KC2 then this will be the closest thing to be considered an upgrade for it. Letshuoer X Gizaudio Galileo will be available in Hifigo. Check them out later.

I would like to send my gratitude to Neil Nino Clark a.k.a. @koyawmohabal for facilitating this review unit (Daghang Salamat Kaayo, Bay!) and also to @TimmyVangtan and LETSHUOER, thank you so much and more power.

I'll post a full review on this one later.

For those who are interested to purchase this product, you can click the stores below, guaranteed non-affiliated links:


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@Premetec a bit especially for technicalities and treble air, Still the DT300 isn't the airiest in my brilliance treble definition.
Thank you
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