Roseselsa Ceramics X

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>>I am brazilian and I speak portuguese, so forgive my english, I’ll use translation tools to help<<


INTRO:

Introduction

A few years ago, the market for TWS sets from non-mainstream brands were pretty hit and miss, with a lot of also-rans lacking either features, sound quality, or refinement. However, it seems that the market for these have matured, and we now get very value-packed TWS sets for quite a reasonable price. I have been sent the Rose Technics Ceramics X for review, retailing at around 40 bucks, and it has proven to be quite a capable set with lots to offer for not a lot of cash. Although I receive this sample from Rose Technics, they do not have any creative or editorial control over my review, and these are my honest thoughts.

Here's a purchase link (non-affiliated) if you are interested: https://rosetechnics.com/products/r...-4-hd-mics-ip54-anti-wind-earphones-ldac-54ms

Unboxing

The box for the Ceramics X is minimalistic, but looks clean with no weird engrish text, very professional. They also employ a product seal to make it even more official and premium feeling.


Open it up and you see the Ceramics X inside a shaped insert. Below that are the eartip section on top, and the cable below. Finally, there’s an instruction manual printed in English, Japanese and Chinese, along with the QC badge.



You get 4 sizes of small, transparent eartips that fit okay on the Ceramics X, but I’ll be opting for the Final E for TWS eartips which have a softer feel and smaller size that fits my ears a bit deeper. The USB-C charging cable is 10cm and works well enough for charging purposes.

Appearance

Let’s look at the Ceramics X, this one has a more rounded, Galaxy Buds-style design using matte white plastic that feels well built, but the finishing of the seams can be better, though it fits nicely snug on the ears.



The touchpad region on the front is sensitive, and registers my touch inputs fairly accurately (though the touch and hold duration is a bit too long).

Features

The Ceramics X has IPX5 water resistance, which is especially impressive for its 40-ish dollar price tag, and support for LDAC, with a low latency gaming mode, keeping delay roughly within 100ms. It also has a transparency mode (which opts for a subtle effect instead of a noticeable one, though at times too subtle), and an ANC mode that’s good but not leading the pack. Finally, there’s a very effective wind noise cancellation mode, tested with my super scientific method of sticking my head in front of the fan, and going out on a motorbike on a windy day. About 80% of the raspy wind noise artifacts were eliminated, very impressive. Rose Technics advertises 10 hourrs on a single charge and 50 more in the case, but these are somewhat optimistic numbers. In real use with a mix of music and videos, with ANC and transparency modes used interspersed throughout, I get about 6 to 7 hrs, which is still very good, and should more than suffice for daily needs.

On top of this, you also have the ROSELINK companion app that asks for a fairly conservative amount of permissions. Only asking for the nearby device access, instead of almost everything like the Moondrop Link app. The app gives you a clean GUI to see the battery life on the individual buds, change noise cancelling modes, and contains 3 EQs named Pop, Hifi and Rock. For a better idea of how these EQ presets change the sound, you can take a look at the frequency graphs.


You can also remap the button taps in here. Additionally, there’s also a “Square” page which includes background noises, like nature sounds, rainfall or a warm fire to help you sleep, and you can play up to 3 types at the same time. I don’t really use this, but I appreciate that Rose is adding more value to their software, and hope they add more sounds in the future.



Sound

The features are good and all, but it won’t matter much if the Ceramics X doesn’t sound good. Thankfully, the Ceramics X delivers on the sound front as well. Principally, I will be testing the Ceramics X on the Pop EQ preset, but on all the presets, it’s got a strong V-shape that is well-tuned, extracting to the last drop of detail and resolution out of its single dynamic driver. Certainly not a balanced sound, but for a TWS product, I think aiming for a fun sound is more suitable for commute situations, where you won’t be paying attention to all the musical nuances, and just looking for a bumpin’ but also clear sound to vibe to.
The Ceramics X have a pretty beefy bass profile, emphasizing subbass, and a healthy dose of midbass presence throughout the mix. Mids are slightly recessed, and vocals can exhibit some unnatural timbre at times, but not egregiously so. There’s a deliberate 8khz clarity boost that sharpens up most musical elements and gives a high fidelity feel to the signature, but in rare circumstances it may be oversharpening instruments.
The Ceramics X has very respectable resolution and separation for its price, both in macro and micro-details. What it lacks is in soundstage width and height, presenting a slightly narrow stage with little positional placement of musical components, making for weak imaging abilities.

Comparisons

Ceramics X vs Tanchjim Mino

Going by the build, both the Mino and Ceramics X trade blows. The case of the Mino is aesthetically more striking for me, with that transparent window showing off the Minos inside. For the buds themselves, I prefer the Bud format of the Ceramics X to the Airpods-style design of the Mino. For features, the Ceramics X wipes the floor with LDAC support, IPX5, and waterproofing, and the wind noise suppression, which makes the Mino seem feature-poor in comparison.
Sound-wise, we have divergent philosophies for both sets. The Ceramics X is more V-shape and generalized for EDM and hypey genres, whilst the Mino is more geared towards lighter music. The bass on the Ceramics X has more quantity then the Mino on its default tuning, though with the PEQ in the Mino you can get it to be pretty impactful as well. Midrange on the Mino is more well-tuned with a slight forwardness and portraying more natural vocal performances. Treble on both aren’t their forte, but both do well to avoid sibilance and gives decent air to their tunings. I will note that the Mino has a higher volume ceiling then the Ceramics X, so for those extra noisy environments the Mino has a few notches of extra volume to push through the noise.

Ceramics X vs Moondrop Space Travel

For the build and features, the Ceramics X handily takes the cake. The Space Travel certainly has a nice design, but the lack of a lid on the case means that it's likely that the earpieces will fall off (I have seen cases of the Space Travel being knocked off the case and lost). The ROSELINK app, although can be more refined, is way less buggy then the Moondrop Link app, and doesn’t ask for as many permissions. IPX5 is also present on the Ceramics X, where the Space Travel has none.
For the sound signature, the Space Travel gives you the Moondrop VDSF-style tuning whilst the Ceramics X is more energetic and wild. Bass on the Space Travel is conservative (likely due to its shallow fit design as well) whilst the Ceramics X has a stronger impact and slam factor. The midrange of the Space Travel is pleasant, and does justice to vocals. It’s a bit less bright then the Tanchjim Mino’s. Highs are a bit rolled off on the Space Travel but in a good way, it makes a for a relatively relaxing listen whilst the Ceramics X is usually a sharper, more intense interpretation. Whilst the Space Travel has a more audiophile tuning, it seems to be limited by its price, whereas the Ceramics X provides a more full-fledged package for the extra you have to pay.

Conclusion

Whilst there are things that can be improved upon, at about 40 bucks, the Rose Technics Ceramics X offers great value, with many modern convienences you would expect from a TWS, along with a nicely tuned V-shaped signature that works well in commute settings and casual listening. Compared to similarly-priced offerings from Tanchjim and Moondrop, the Ceramics X is a lot well-rounded thanks to a better, less buggy companion app and versatile ANC and transparency performance. Before, I would usually reccomend buying discounted second hand Samsung Galaxy Buds for a do-it-all TWS, but the Ceramics X will do very well as an alternative, and can be had in new condition for the same or a lowered price.

For more information and eyecandy shots, please check out my video review:

Disclaimer

• Thanks Rose Technics for providing a unit of the Ceramics X for me to review, but all thoughts and opinions are my own, and are not influenced in any way.
• Please take this review with only a grain of salt, as everyone's hearing, fit, and gears may differ, so our experience may be different.

Intro

Price(MSRP)

• $45.99

Ear tips

• Stock tips

Packaging

• Rose Technics Ceramics X
• 3 pairs of silicone ear tips (S, M, L)
  • Slightly sticky
  • Surprisingly comfortable for stock tips
• USB Type A to Type C charging cable

Build Quality

• Build quality of the TWS is decent which has a nice matte finish to it.
• However, the charging case feels cheap, which has a glossy plastic finish.

Fit/Comfort

• Size is slightly on the larger side but not overly large.
• Fit and comfort is alright, but personally can't wear it for too long, only a few hours at most before it starts to get a bit uncomfortable and pain for me.
• But overall is decently comfortable enough to use it casually or over a shorter period of time.

User Experience

User Experience (Others)

• Battery Life
  • Battery life is great, I only have to charge it once, or twice in rare cases per weekwith around 3-4 hours of use per day.
    • Around 70-80% volume, LDAC
  • Charging speed is also excellent, usually within an hour.
• ANC
  • Overall ANC performance is decent, I can still hear some background noises if they get really loud but I think it is already quite good for the price.
    • I would still like to manage your expectations first, it is nowhere as good as other flagship TWS like Apple or Sony, but they are miles ahead of something more budget oriented like the Space Travel. Plus, they don't have that vacuum feeling like other flagship TWS.
• Transparency
  • It's alright, can be used for shorter conversations but I will usually ask the other party to repeat multiple times if the conversation drags on longer because it gets a bit unclear.
• Call quality
  • At first, I try to record the call to try and evaluate after that, and I think that it's pretty clear.
  • After that, I use it frequently in actual meetings and calls, and I usually don't have to repeat myself as the other party is able to listen to me clearly.

User Experience (App)

• App takes a while to connect to or detect the TWS, even when it is already connected to the device through Bluetooth already.
  • Sometimes I even need to click "Connect Device" manually in the app
• As for the app itself, it offers a wide variety of very useful features such as Dual Device Connection, but I'll go through the important features below:
  • Noise Control
    • Alternative way to change the ANC/Transparency mode, personally prefer changing it in the app itself as I don't need to rotate every other setting like I do when I long press the TWS.
  • Changing preset EQ profiles and BT codecs
  • Game Mode:
    • To be honest, I didn't notice that much of an improvement in terms since it is still a Bluetooth device after all.
  • Dual Device Connection:
    • Very convenient feature, personally use it on both my work laptop and my phone to connect them seamlessly, huge plus in my books.
  • Customizable Touch Controls:
    • Another convenient feature as well, managed to map it to my previous TWS that I'm used to, so I don't have to relearn everything.
• Overall, I'm very satisfied with most of the features that is offered through the app, and it also has a very clean and simple user interface for the user to interact with.

Sound

• Mild V-shaped

Preset EQ Profiles

• HiFi (default)
  • Quite balanced across all frequencies except the insane upper treble peak.
  • Bass is still punchy and not overly bloated.
  • Balanced midrange, male vocals and female vocals has decent forwardness and energy to them.
  • Treble is harsh, especially for upper treble. Other than that it has decent sparkle and extension.
• Rock (Preferred)
  • Basically the same as HiFi except the upper treble is slightly less annoying. (still annoying though)
• Pop
  • Sub bass rumbles a lot more, and it just gets in the way and overpower other frequencies.
  • Vocals, female vocals especially, sounds a lot more drowned and recessed, not enough energy to achieve a proper balance with the lower frequencies.
  • Treble is more dull compared to the previous 2 modes but upper treble spike is still audible to my ears.

Bass

• Slight emphasis on mid bass with still a good amount of sub bass.
• Decent impact and slam, with good punchiness and body.
• Not the most well controlled bass, but its not the worst either.
  • Sounds a bit loose, and lacking in details because it sounds so smoothed over.
• Quantity is sufficient and not overpowering, it is also not lacking or bass light is any way.
• Overall, the bass is decent enough, but not really the most textured or detailed bass I've heard in this price range.

Midrange

• Lower midrange is on the warmer side of the spectrum from the minor bass bleed.
  • Male vocals sound pretty decent, with some body and fullness to it but is definitely less forward compared to the female counterpart.
• Upper midrange is forward yet still quite smooth.
  • Female vocals are very energetic, but not to the point of being shrilly or shouty due to the sufficient warmth that gives proper body to it. However, it can get a bit much if you're sensitive to it, but that's not really the case for me.
• Overall, the midrange performance of the Ceramics X is pretty good.
  • Good balance between lower and upper midrange, with some emphasis on higher pitched vocals.

Treble

• Treble is on the more neutral side of things without being too sparkly or dark ... before upper treble at least.
  • Upper treble is quite harsh, making it unbearable especially for songs with high hats.
• Lower and mid treble is quite smooth without any noticeable peaks until upper treble again.
• Treble extension is decent overall but can be unnatural due to the upper treble peak.

Technicalities/Others

• Resolution and detail retrieval is still only decent even with the boost in upper treble.
• Soundstage has a rather average width with an equally average depth.
• Imaging and accuracy is average at most as well, mostly stereo with very meh accuracy as notes are not as defined.

• Separation and layering is decent for a single DD at this price range, which gets somewhat congested during busy tracks, but is still acceptable.
• Note weight is good, naturally bodied without being overly thick or thin.
• Timbre is overall quite natural, except for the metallic-ness that is added from the upper treble peak.

Conclusion

• As a conclusion, I think the Ceramics X is actually a very decent TWS overall, with quite a wide variety of useful features, a good app, and decent sound quality.... with some flaws here and there of course.
• I would recommend this TWS if you're looking for something that has a pretty complete set of basic features and decent enough sound.
  • However, I would suggest you to look at something else if you want a TWS that has clean, technical sound or if you're treble sensitive.
• Personally, I think Rose Technics is definitely stepping into the right direction with the Ceramics X, focusing on the overall user experience and convenience first, even though they are basic at the moment. With some tweaks and improvements to their sound quality, I'm confident that they will do a lot better in the TWS market!

Thanks for reading!

Roseselsa Ceramics X: A ROSE on a budget



INTRO:

Rose Technics has some fantastic audio gears in their line-up, including TWS. Their new Rosesela Ceramics X is an upgrade from the previous release Resesela Ceramics. The difference between two is ANC mainly. I didn’t have the chance to try Ceramics, so I don’t know about the sound difference. Actually, I’m a big fan of wired IEMs and TWS is not my go to thing when it comes to music. I used some TWS just for talking purpose. But this is for the first time I used a TWS to listen to music and I’m amazed by its sound quality. I must say, Rose Technics put in some serious effort to deliver this kind of sound in a TWS in this price point. When you listen to this, keep in mind that it costs only $46. I've been using Ceramics X for about a week now and enjoying it a lot, though I have some complaints regarding shouty upper frequency (in some tracks), buggy app (which I wish will be solved through firmware update) and, off course, the poor microphone quality!



DISCLAIMER:

Rose Technics was kind enough to send me the Rosesela Ceramics X to review. I am not affiliated with Rose Technics and of course, I was not asked for any copy-checking before publishing. All opinions shared in this review are my subjective thoughts.

One thing more: The review is based on my personal experience and what I hear using different sources. Your experience may vary due to personal preference and physical differences like the shape & depth of the ear canal.

For your personal purchase, checkout ROSE TECHNICS for their products and various offers (non-affiliated link).



DEVICES:

● Poco X3
● Realme 8 Pro
● MiPad 5 Pro





TECHNICAL SPECIFICATIONS:

● Audio Format: LDAC/ AAC/ mSBC/ SBC
● Playtime: 50H
● Charging Time: Appr. 40min
● Noise Control: Hybrid ANC / Transparent
● Interface Type: USB-C
● Bluetooth Version: 5.3
● Driver Unit Diameter: 10mm
● Impedance: 32Ω
● Frequency Response Range: 20 - 20000Hz



WHAT’S IN THE BOX:

● Rosesela Ceramics X (inside the case)
● Four pairs of silicon ear tips
● USB C-to-C charging cable
● Some official papers





USER INTERFACE:

You can easily download the RoseLink app by scanning the QR code on the box or directly from Google Play/ Apple Store. UI is clean and straight forward. The app’s primary function is to control basic features like toggling between sound modes (HiFi, Pop, Rock), swithch between ANC modes, buds touch control customization, and enabling gaming mode for low latency. While the RoseLink app does the job, it feels limited and heavy for what it offers, especially when you compare it to other more feature-rich apps available for wireless earbuds. Despite being user-friendly, it’s clear there’s room for improvement, particularly in making the settings more responsive and adding more customization options.





BUILD, FIT & COMFORT:

The Ceramics X is primarily made of polycarbonate, which gives it a lightweight and durable feel. Despite being plastic, the construction doesn't feel cheap—there's a glossy coating on the charging case that helps resist fingerprints and minor scratches, which is a nice touch. The earbuds themselves are compact and sleek, with a sturdy, minimalistic design. It excels in comfort, thanks to its ergonomic design. The earbuds are lightweight, and the small, rounded shape helps them fit securely in the ears without causing discomfort, even during long listening sessions. They fit snugly without the need for constant adjustment, making them suitable for activities like walking or commuting.







SOUND IMPRESSION:

As I mentioned earlier, it’s a V-shaped sound tuning TWS with a bit of a boost in mid-bass and treble region. Before we jump into the detailed sound impression section, I would like to mention that The Rosesela Ceramics X offers a versatile listening experience with three distinct EQ modes, each shaping the sound differently to cater to a variety of preferences. Here’s a breakdown of the sound impression across these modes:

● HiFi Mode (Balanced Sound)

The HiFi mode provides the most balanced sound among the three, though it still leans slightly towards a V-shaped signature. The bass remains punchy but not overpowering, while the treble offers a good amount of sparkle without being harsh. Mids are more present in this mode, making it suitable for more detailed listening. This is the best option for those who want a more neutral yet engaging sound for daily use.

● Pop Mode (Vocals and Mids Forward)

In Pop mode, the focus shifts towards the midrange, pulling vocals forward and making them the star of the show. While this mode highlights both male and female vocals, it does so at the expense of bass and treble, which are toned down. Some listeners might find this mode lacking in balance, as the bass loses some impact, making the overall sound feel more vocal-centric and less lively.

● Rock Mode (Enhanced Bass and Treble)

Rock mode pushes the bass and treble even further, creating a more dynamic and energetic sound. The bass becomes more prominent and impactful, making it great for genres like EDM or hip-hop. However, the mids are pushed further back, making vocals and midrange instruments feel recessed. This mode adds extra excitement to the sound but might not be ideal for those who prefer a more balanced mix.


My sound impressions are based on the mix of these three EQ settings. So, let’s dive deep-



LOW FREQUENCIES:

The low-frequency performance of the Rosesela Ceramics X is impressive, especially given its budget-friendly price tag. The earbuds deliver a punchy, well-controlled bass that balances depth and impact without overwhelming the rest of the sound signature. The sub-bass is deep and resonant, providing a satisfying rumble, which is particularly noticeable in bass-heavy tracks like electronic music or hip-hop. The mid-bass is slightly boosted, giving drums and bass instruments a noticeable punch. This boost adds liveliness to the sound, making it more engaging, especially for casual listening. The bass is well-controlled and doesn’t bleed into the mids, maintaining a clear separation between low and mid frequencies. Those seeking a more neutral or refined bass might find the low frequencies a bit too prominent, especially in the Rock EQ mode, where the bass gets even more emphasis.





MID FREQUENCIES:

The mid-frequency performance of the Rosesela Ceramics X offers a mixed experience, with certain strengths and some limitations, depending on what you're listening to and how you prefer your mids. Male vocals, while present, can sometimes feel slightly recessed due to the V-shaped tuning of the Ceramics X. These tuning push the bass and treble forward, leaving the mids a bit behind. As a result, male voices, particularly in genres like rock or folk, may lack the warmth and weight they need to sound fully engaging. The Ceramics X does better with female vocals, as the upper mids have more presence and energy. This gives higher-pitched voices a clearer and more vibrant sound. Female singers, particularly in pop or acoustic tracks, come through with more sweetness and sparkle, making the listening experience enjoyable. While there is a hint of sibilance in tracks with a lot of emphasis on higher frequencies, it's kept at a manageable level. When it comes to instruments, the midrange clarity is solid, but it doesn't excel at providing a natural tone for instruments like pianos or guitars. The mid frequencies of the Ceramics X are acceptable but not standout, especially for audiophiles who prefer a more balanced or forward midrange.





HIGH FREQUENCIES:

The high-frequency performance of the Rosesela Ceramics X is one of its more dynamic elements, adding energy and sparkle to its overall sound signature. The treble is designed to be crisp and detailed, providing a lively listening experience, particularly in HiFi mode. This mode enhances the upper frequencies, offering a brighter and more airy treble presentation, which brings out the clarity in instruments like cymbals and hi-hats. But there's a catch. While the treble is generally well-extended, it can become harsh at higher volumes, especially in Pop and HiFi modes. This can make listening for long periods somewhat fatiguing if you're someone sensitive to high frequencies. On the flip side, Rock mode tones down the treble, offering a smoother, more laid-back high-end, though it can sometimes feel a bit veiled, lacking the brightness and clarity that audiophiles might expect.





SOUNDSTAGE & INSTRUMENT SEPARATION:

The soundstage is average in width and height—it provides a sufficient sense of space but doesn’t deliver an expansive, open experience like higher-end models. You’ll get a reasonable sense of left-right and near-far positioning, which is adequate for everyday listening but might feel confined for those seeking a more immersive experience. When it comes to instrument separation, the Ceramics X does an acceptable job. Instruments are generally easy to distinguish, but the separation isn’t as refined or crisp as you’d find in premium models. On busier tracks, separation can feel slightly muddled, though it still manages to keep higher-pitched instruments like cymbals or guitars relatively distinct. For everyday use, the soundstage & instrument separation are sufficient, but those seeking more precise imaging and an expansive soundstage may need to explore more premium options.



TECHNICALITIES:

The Rosesela Ceramics X offers a relatively fun and engaging sound, but if you're looking for a more analytical sound signature, it may fall short. The Ceramics X is tuned with a V-shaped sound profile, emphasizing bass and treble while leaving the mids somewhat recessed. This type of tuning isn't ideal for analytical listening, where a more balanced and neutral signature is preferred for critical detail retrieval. In terms of technicalities, while the bass is punchy and well-controlled and the treble sparkles with good detail, the midrange is slightly veiled, especially with male vocals. This can make it harder to pick up on finer details in the music, which is essential for an analytical sound. If you're after a fun, lively sound with punchy bass and clear treble, the Ceramics X delivers well for casual listening. But for those seeking an analytical, detailed sound, it may not meet the mark.





NOISE-CANCELING:

The Rosesela Ceramics X offers four noise-canceling modes, providing versatility depending on your environment and needs:

● Hybrid ANC (Active Noise Cancellation) Mode:
This is the strongest noise-canceling mode, boasting a reduction of up to 55dB across a wide frequency range. It effectively blocks out low-frequency sounds like engine noise or traffic, making it ideal for noisy environments such as airplanes or subways. However, to fully benefit from this mode, a good seal with the ear tips is essential.

● Wind Noise Mode:
Specifically designed for outdoor use, this mode significantly reduces wind interference, making it perfect for activities like walking or jogging in windy conditions. This mode works well to maintain audio clarity when ANC can struggle with constant wind.

● Normal Mode:
In Normal mode, the ANC is more moderate, allowing some ambient sound through. It’s useful in everyday environments where you don’t need complete isolation but still want to reduce background noise without fully disconnecting from your surroundings.

● Transparency Mode:
This mode enhances environmental sounds, allowing you to stay aware of your surroundings without removing the earbuds. It's great for situations where you need to hear announcements or engage in conversations without taking off your earbuds.







RECOMMANDED FOR:

● Casual Listeners
If you're someone who enjoys a fun and lively sound with strong bass and clear treble, the V-shaped tuning of the Ceramics X will appeal to you. It adds energy to genres like pop, EDM, and hip-hop, making it enjoyable for everyday listening.

● Budget-Conscious Buyers
Priced around $45-$50, the Ceramics X offers great value for its features. With LDAC support, ANC, and solid battery life, it competes well in the budget TWS segment. If you want affordable earbuds that pack a punch, this is a good option.

● Users Looking for ANC & Strong Features
With Hybrid ANC technology, the Ceramics X is a good fit for people who want noise cancellation on a budget. It also includes features like dual-device connectivity, game mode (54ms latency), and IPX5 water resistance, making it versatile for different activities.

● Fitness Enthusiasts
If you need earbuds for working out, the lightweight, comfortable fit, along with the IPX5 water resistance, makes the Ceramics X a great companion for exercise, jogging, or gym sessions.

● Bass Lovers
The punchy and well-controlled bass of the Ceramics X makes it ideal for listeners who love bass-heavy genres. The deep sub-bass response provides a strong foundation for tracks that thrive on low-end power.

● People Who Value Comfort
With its lightweight design (4.2 g per earbud) and comfortable fit, the Ceramics X is well-suited for long listening sessions without causing fatigue. It also comes with different ear tip sizes for better isolation and comfort.





NOT FOR:

● Analytical Sound Seekers
If you prefer a more neutral, balanced sound with strong detail retrieval for critical listening, the Ceramics X may not satisfy. Its V-shaped tuning emphasizes bass and treble while recessing the mids, which can mask finer details and create a less refined sound signature.

● Audiophiles Seeking Advanced Technical Performance
The soundstage and imaging of the Ceramics X are average, and separation between instruments can feel less precise, especially on complex tracks. If you are an audiophile looking for pinpoint accuracy, superior layering, and expansive soundstage, you may find this lacking.

● Those Sensitive to Harsh Treble
While the treble is clear and sparkly, it can become harsh at higher volumes, which may cause fatigue over time. If you're sensitive to high frequencies or prefer smoother treble, the Ceramics X may not be the best fit.

● People Who Prioritize Mids (Vocals)
The midrange is recessed, making male vocals sound slightly veiled and distant. If you enjoy vocals and mid-centric music (such as folk, jazz, or acoustic), this tuning might not provide the forwardness and warmth that such genres demand.

● Users Needing AptX or More Customizable EQ
While the Ceramics X supports LDAC for high-resolution audio, it lacks AptX and more advanced EQ options. If you're an Android user who prefers AptX or someone who needs more control over EQ settings, you might find these missing features limiting.

● Listeners Requiring Top-Tier Microphone Quality
The microphone quality is average, which may not be ideal for frequent calls or virtual meetings. If you prioritize crystal-clear voice quality during calls, the Ceramics X may not fully meet your expectations.





CONCLUSION:

The Rose Technics Rosesela Ceramics X offers a compelling package for those seeking a well-rounded, budget-friendly true wireless experience. It combines impressive features like Hybrid ANC, LDAC support, and IPX5 water resistance, all packed into a compact and comfortable design. The sound profile, anchored by three EQ modes—HiFi, Pop, and Rock—delivers a versatile listening experience that can cater to a variety of genres and preferences. Whether you're looking for punchy bass, forward mids, or an energetic treble, the Ceramics X allows you to switch between sound signatures to suit your mood. Although it may not offer the most analytical or expansive soundstage, the Ceramics X excels in providing rich and enjoyable audio for the price. For users on a budget who want more than just basic features, this is a standout choice that balances performance, comfort, and modern tech.

ROSESELSA CERAMICS X: GOOD FOR $50?​

Intro​

- This review unit was sent to me by Roseselsa Silence. So I would like to thank you for giving me the opportunity to review it.
- Disclaimer: This review is purely my opinion, where I have been using it for several days. So all opinions are purely from my experience of use.

Specifications​

- Audio Format: LDAC / AAC / mSBC / SBC
- Playtime: 50H
- Charging Time: Appr. 40min
- Noise Control: Hybrid ANC / Transparent
- Interface Type: USB-C
- Bluetooth Version: 5.3
- Driver Unit Diameter: 10mm
- Impedance: 32Ω
- Frequency Response Range: 20 - 20000Hz

User experience​

- First, let's talk about the build quality. The build of this Ceramics x is still quite good even though it is made of plastic. the execution feels neat & solid enough both tws and the case.



- Ceramics X also has several features to support users that can be applied via touch & via application, such as:

• - Noise control which has 4 types, namely normal mode, Noise canceling, wind noise & transparency. Where all of them can feel the difference between one and the other, aka no gimmick.
• - 3 types of auto EQ, namely POP which feels a bit warm, smooth & a bit dull, HIFI which tends to be a bit balanced in all sectors & ROCK which has a slightly V-shaped sound where the bass & treble feel boosted. These three EQs can be said to be no gimmick because all of them feel the difference. But unfortunately there is no manual EQ here, so we can't adjust the EQ manually according to our wishes.

- 3 types of audio codecs SBC, AAC & LDAC (LDAC is really cool for music).
- Game mode which unfortunately doesn't feel any different when activated or deactivated.
- Dual device connection.
- For durability based on my experience using normal & LDAC mode for 3 hours with a volume of around 70%, it consumes around 40% power.
- For the battery backup on the case, it can be said to be good. After using it for 4 days where I use it for about 4-5 hours every day, the battery backup only shows an indication that the remaining battery is below 30%. as additional information:

• The green case indicator is 70% battery <
• The white case indicator is 30%-70% battery
• The red case indicator is 30% battery>

- The case charging is also relatively fast. When I charged from 30% to 100% it only took about 1 hour.
- For the fitting problem, it is quite good for me, there are no complaints at all about the fitting. feels fit, comfortable & also supported by its light weight so it is very comfortable to use for a long time.
- For the microphone, in my opinion, it is still standard. Not good but not bad either for the size of TWS.
- It also supports IPX5 where it is resistant to sweat or splashes of water such as light rain. Not recommended for swimming or other water activities.

Sound quality​

- Just for info, for this review I used Normal Mode, LDAC & auto EQ which is HIFI. Because in my opinion this combination is the most comfortable for listening to music.
- Roselsa Ceramics X has a sound direction that tends to be V-Shape for me, by highlighting the uppermid to treble.
- The bass has sufficient quantity with a focus on the subbass area. The subbass is quite deep with a rumble that is still quite okay for me. For the midbass, it has an impact that is not so strong. In terms of texture, it is also not that good. As for the speed, it is still good, when double pedaled it is still good. The control is also still okay so the bass is safe from crossing over to the mid.
- For the mid, the position is slightly backward with a slightly thin weight. So the male vocals feel less pleasant to me. For the female vocals, it feels more dominant with a boost effect in the upper mid area. The presentation is quite energetic, clear, quite clear & sweet. For the thin sibilance, it is still felt but still at a safe stage. For the instruments, it also feels quite loose, detailed & natural.
- For the treble, the presentation is quite energetic, open & detailed. It just feels a bit intense so it feels quite tiring to use for a long time. For the treble extension, it is also still good, it feels right to the end & the airy impression is still felt.
- For the technicalities, for me, it is still plus-minus. The plus is that it has details, separation & layering, which can be said to be good for TWS at its price. The clarity & transient are also still quite okay. But for the stage, it seems a bit lacking, the right and left feel a bit narrow with a height that is also a bit lacking, but for the depth it is still okay. For the imaging, it also feels lacking, the pin point still feels less precise.

Comparison​

Roseselsa Ceramics X VS Moondrop Kuroneko: If we talk about user experience, to be honest, nekocake is inferior to ceramics X, both in terms of features and battery life. Nekocake's sound has a similar bass quantity. But the subbass on ceramics X feels deeper & the rumble feels more solid. Nekocake's mid position feels a little more forward & a little more weighty. The vocals feel a little smoother & a little less free for me. For the treble, you could say that nekocake feels smoother & less energetic when compared to ceramics X, the extension is also not as good as ceramics X. For the technicality, it also feels not as good as ceramics X. Yes, overall, for the price, in terms of user experience or sound, I choose ceramics X.

Who is Roselsa Ceramics X suitable for?​

• For those looking for tws with lots of features including LDAC under $ 50.
• For those who want to find tws with good sound quality, not just any sound at a price of $ 50.
• Like female vocals? Like acoustics? Like Japanese? You can try here. with LDAC & auto EQ Hifi mode that has a balanced sound. The musical feel with these criteria feels really good, not inferior to IEMs in its price class.
• For those who need tws with a fairly long usage period in this case, battery life & it doesn't take long to charge it.

Conclusion​

Roseselsa Ceramics X is one of the interesting tws at a price of $ 50. It has many interesting features, especially in the LDAC, Noise control & auto EQ features that don't seem gimmicky. In addition, the sound quality is also quite good in my opinion for a tws at its price. Overall, I quite enjoy using it in my daily life, so I think Roselsa Ceramics X is a tws that is worth trying at its price range.

★ Introduction :-

Rose technics is a reputed chinese audio brand, they were established in 2012. The company has been trying to improve their own research and development for many years.That continuity they are still trying to maintain. Their IEM, tws and other items are available in the market at very affordable prices.There are also some mid tier lineup items. I haven't used many of their gear items though but recently I got a chance to use one of their tws which was quite good. Rose Technics Ceramics X is the topic of today's review. I've been using this one for more than a month. I'll try to give my personal opinion about it in this review. So that is convenient to understand how it is justified for this price category.

★ Disclaimer :-

Ceramics X tws was sent to me directly from Rose technics for review purpose. I had no financial agreement with them to promote their product. As always the entire opinion of this review is completely my personal.

★ Box Content at a Glance :-

The unboxing experience of ceramics x was quite satisfactory. Out of the box Tws,Charging doc, usb A to cable, three pairs of different size black color eartips, user manual guide and a qc card. But despite all the essentials, I felt the lack of a protective case that would have made me more satisfied. However, I have no room to complain about Rose technics in this regard.

1. Ceramics x Tws ×1
2. Type A to C Charging cable ×1
3. Three pairs of different size eartips
4. User manual guide and qc card ×1

★ Design & Build Quality :-

The entire build construction of Ceramics x tws is made of polycarbonate, even the nozzle area is the same material and its charging doc is also made of plastic material. The bottom of the Doc has a type c charging port and a small reset button next to it. A type of glossy coating has been used on the entire body of the Doc.The good thing is that it looks glossy but fingerprints & minimal scratches are not visible. Although it is plastic build, considering the quality, it does not feel wonky or cheap at all and can be said to be durable enough. They have three color variants namely black, metallic gray and white. Although my unit is of black color, but the gray color is the most attractive among them.Talking about the design of Tws, I will say that it is very simple, Their looks like simply an oval shape, but nothing specialities can be noticed there. The back side of the two buds similarly has "Rose Technics" branding and "ceramic" writing with gold accents. Interestingly, this branding part is basically the touch control area.

★ Fit, Comfort & Isolation :-

This plastic build tws was very light weight, per bud weight is 4.2g, so it fits very well in the ear canal. The quality of the stock eartips that came with it was fairly good which can create a good seal while also providing good comfort. I wore these tws in my ears continuously for about three hours, in which case I did not face any kind of discomfort or etching problem and I was able to use them comfortably for a long time. Moreover, due to their good seal, sound isolation is also good, but it does not seem like passive isolation at all. Normally, when music is played through these two buds in your ears, the outside noise is reduced more , so there is no chance to big complain here.

★ Connectivity & Features :-

The Tws will be connected with the phone, laptop or music player with the latest bluetooth 5.3. While connected, the connection strength was stable, so there was no problem. Also tws has codecs like Ldac so you can enjoy lossy sound. Apart from this there is support for regular aac & sbc. However, having advanced codecs like Apt-x, Apt-x hd would have benefited more. As this Tws is IPX5 rated, it is resistant to sweat and splash of water, so it will provide excellent support in outdoor traveling including regular gym, cycling. If one thinks that it is fully water resistant and thinks of wearing it while swimming, then it will be completely foolish, so it is advised to be careful about this. Ceramics x tws charging doc supported fast charging system. According to the company's advertisement, it is possible to get ten hours of play back by charging it for ten minutes. Which was nearly accurate according to my testing. On the other hand, from this charging doc, it can be fully charged about five times, i.e. it is supposed to get a total of fifty hours of playback time, but I got about thirty seven hours of playback time on a single charge, which cannot be said to be bad in any way, basically battery backup varies from user to user. If one uses tws at 50-60% volume level then overall battery backup can increase. I personally used it at 80-90% volume all the time and showed a consistent total battery life. Rose technics provides proprietary app support to ease the usability of their ceramics x tws.Their RoseLink app is available on both Google play & App store platform.

Let's take a look at the features of Roselink app below



Decent sound isolation is available in normal mode, in which case the possibility of outside noise is somewhat reduced. Noise cancellation or shift to Anc reduces the loud noise of outside a lot and when listening to music at approximately 65-70% volume, all the noise seems to be dead silent. If you go to Transparency mode, you can maintain self-awareness about the condition of outside in addition to music playback. As a result, it becomes more comfortable to travel on the roads.



Touch control is available from the two buds as shown in the image above



There are three EQ profiles respectively pop, hifi & rock. Switching to Pop mode delivers soft bass with a slightly warm midrange presentation and smooth highs. Rock mode reduces the resolution and increases the metallic timbre with the effect of bloated bass. This unnatural timbre makes the treble sound more unrefined. Finally, hifi mode is left, moving to it gives the most well-balanced tuning and there is less unwanted metallic touch compared to rock mode. So the best listening experience is available from here.

★ Gaming & Call quality :-

The device has a dedicated gaming mode and if you switch to that mode, the latency will be reduced to 54ms. This latency doesn't give much advantage in fps gaming really because when I played the game there was noticeable delay and I couldn't understand the opponent's positioning & sound of gun shot due to its poor imaging capability. It can be used for gaming normally, but my advice would always go to wired earphones. Now let's talk about call quality. The 4 GoerTek Mics system used by Rose technics which according to them is used for network noise reduction, which to be honest I didn't find any improvement. Indoor call quality is ok type, but outdoors i.e. in crowded areas it becomes unusable. Although there are better options in the budget considering the calling feature.

★ Specifications :-

~ Driver Unit Diameter :- 10mm
~ Impedance :- 32Ω
~ Frequency Response Range :- 20 - 20000Hz
~ Interface Type :- USB-C
~ Bluetooth Version :- 5.3
~ Audio Codec :- LDAC/ AAC/ mSBC/ SBC
~ Playtime :- 50Hr
~ Charging Time :- Appr. 40min
~ Noise Control :- Hybrid ANC / Transparent

★ Sound Aspect :-

This set is typically offered V shape sound profile where the bass and treble presence are more but the midrange position is towards the back. Here the bass section alone emphasizes the sub bass region more than the mid bass. Sub bass rumble has the ability to hit very deep and it was also extended, but due to the low impact of mid bass, the overall bass does not feel so enjoyable.The Midrange especially upper mids focused which is more forward with better clarity. Lower mids recessed Naturally, the sub bass is slightly boosted causing minimal bleed issues with the lower mids.The peak of its 5k region makes some female vocals more energetic and sometimes shouty which is a bummer. Treble section was not extended enough, noticeable upper treble roll-off also detail retrieval was mediocre. The bothering part there was the unwanted metallic shrillness which made the sound of the string instrument more  unnatural and thus created the coherence issue. Technicalities were average, sound stage height narrow but depth fairly accurate with poor imaging. Even though the tonality was a little on the brighter side and timbre was not that good.

★ Conclusion :-

Ceramics x tws is a very good package with its battery backup, features and overall sound. There are some lacking which if fulfilled would have been more acceptable to more people. At the price it has come to the market there are more competitors in the current market. Some of them may be slightly ahead in mic better or sound, but ceramics x versatile. This set can be recommended for those who are looking for tws under 50$ and also prioritize Ldac and good battery life.
I don't think this tws will more disappoint anyone in any way.

I've provided the purchase link below for everyone convenience

Rose technics official website (link isn’t affiliated)

Introduction

Rose Technics, the portable audio brand established in 2012, persists with TWS technology. And now it is bringing an improved Rose Ceramics X model to the market. Aesthetically very similar to the previous version, almost identical. The new model is equipped with the first-generation Planck transducer unit, which incorporates a rear resonant cavity. It features a high-grade carbon nanotube diaphragm and a 1.5T dual Tesla magnetic circuit system. They are equipped with independent headphone decoding and amplification modules, paired with the Cadence Tensilica HiFi 5 DSP chip, and are also LDAC compatible. Utilising the SOC Noise Cancellation Algorithm, Hybrid ANC Technology and Noise Cancellation Structure Cavity, these headphones achieve a profound noise reduction of 55 dB over an ultra-wide frequency range of 4000 Hz, effectively eliminating 98.7% of everyday noise. Ceramics X features a windproof, self-contained physical structure design. In addition, it achieves IPX5 water resistance. A single charge provides 10 hours of playback time, 50 hours with the charging case. Just 10 minutes of charging provides 10 hours of music playback. With 4 GoerTek silicon crystal microphones and powered by AI neural network noise cancellation algorithms, this headset effectively eliminates background noise interference for a crystal clear face-to-face calling experience. In addition, the Gaming mode will achieve an unnoticeable latency of 54ms. Let's see if all these features are that great in the review below.



Specifications

• Audio format: LDAC/AAC/mSBC/SBC.
• Playback time: 50H.
• Charging time: approx. 40Min.
• Noise control: Hybrid ANC / Transparent.
• Interface type: USB-C.
• Bluetooth version: 5.3.
• Driver unit diameter: 10 mm.
• Impedance: 32Ω.
• Frequency response range: 20 - 20000Hz.

Packaging

The Rose Ceramics come in a small white cardboard box, whose dimensions are 101x101x32mm. On the front side there is an actual picture of the charging box with the headphones floating as if they were coming out of it. There is a semicircle that goes under the lid. On the base is the model name, in the top left corner is the LLR (Lightning Latency Reduction) and ELO (Equal Loudness Contour) logo. In the upper right corner is the LDAC logo. On the back side are the product features and Rose's data.
The box is opened by gutting a strip of die-cut cardboard. After removing the box there is a white plastic tray containing the charging box inside a small bag of the same colour. After lifting the tray out, there is a cardboard box with two little boxes at the ends containing the silicone tips and the USB-C cable. The complete contents are as follows:

• The charging box with the two TWS.
• The two TWS Ceramics X.
• Four pairs of black silicone tips, sizes XS/S/M/L.
• One USB charging cable (Type-C to Type-A).
• One instruction manual.
• Warranty certificate.

On this occasion there is no additional box to protect the charging box, so the contents are just the right size, although there are 4 sizes of silicone tips.



Construction and Design

The design is the same as the Ceramics model, only the colour of the charging box and the headphones is different.
The charging box is made of glossy metallic coloured plastic. Its dimensions are 62x44x25mm. At the bottom is the USB Type-C socket for charging, as well as a button to reset the TWS. It is available in three colours, dark grey, metallic grey and white. The model under review is metallic grey. The case is in this colour although the TWS are simply grey. The headphones are also hard plastic, but matte. Both have touch panels on the outside. On it you can read the brand name and see the brand logo in the centre. There is a hole on the edge of the crown of the outer face. This is the microphone hole. Although near the base of the mouthpieces there are two more elongated holes that could be microphones. The capsules have a hybrid shape between a sphere and a cylinder. Their shape is crescent-shaped until the split, while the inner side shrinks rapidly. On the inner side are the charge connectors, which are two, the inscribed channel letter and a further hole. The nozzles are very short and transparent. They are protected by a fine dark mesh. It has two diameters, the lower one is 4.6mm, while the upper crown is almost 6.1mm. Its entire length is very short, about 3.5mm.
There seem to be no external changes in the new X version. It looks like the changes are on the inside, with that high-end grade carbon nanotube diaphragm driver and a 1.5T dual Tesla magnetic circuit system. They use separate headphone decode and amplifier modules, the Cadence Tensilica HiFi 5 DSP chip and are also LDAC compatible. In addition, it achieves IPX5 water resistance.



Adjustment and Ergonomics

Rose specifies that their ergonomic design has been based on more than 70 iterations and that more than 2000 ear canal profiles have been used. Actually, their design is very compact, they are a bit stubby, but they fit me very well. Although the mouthpieces are very short, I could say that the large tips fit me very well, which is unusual, given the unique morphology of my particularly wide ear canal. However, the sound obtained with these tips, as well as the fit, grip and seal, is excellent, something I didn't expect. With a very low weight, their shape fits very well and they are very comfortable to wear for hours on end.



Operation and Connection

The Rose Ceramics X uses Bluetooth v5.3 and the formats are LDAC/AAC/mSBC/SBC. The operating range is not specified this time, but may be less than the 15m range of the previous model.
The Rose Ceramics X allows pairing with two sources at the same time. The system for doing this is described in the manual. I tested it with my mobile phone and the Fiio BTA30 Pro at the same time and it worked correctly. This allowed me to listen to music connected to my PC via the Fiio BTA30 Pro used as a DAC and to take calls with my smartphone when necessary.
This time it seems that the Rose APP has been improved (version 3.0.6 4068) and I managed to connect to both Ceramics models with it. You can see that the X models have more options than the previous model. Via the APP you can see the load of each TWS, activate the different noise cancellation modes (Noise Cancellin, Wind Noise, Normal, Transparency). You can also choose between the three tuning modes (Super Master EQ): Pop, HiFi and Rock. Game Mode can be activated to reduce latency to 54ms. The communication protocol (LossLess Audio Protocol) AAC/SBC or LDAC can be selected. Dual connection can also be activated, but it does not support LDAC mode. It is worth noting that you can connect to the APP without disconnecting from the Bluetooth source, it seems to use a different channel. The APP can also be used to perform a firmware upgrade. At the time of the review TWS are using version 29. But there are other sections of the APP that allow you to customise the capsule controls. You can specify which function each capsule can perform with one, two or three presses. You can also choose the language of the TWS from English and other Asian languages.
It says that on a single charge the Ceramics X can last up to 10 hours. What is true is that if they are connected to the APP the battery life is much shorter, as well as the volume used also implies a higher cost, as well as the Game mode.
The power and listening volume is higher than the previous model.
The list of functions is as follows:

• Volume +: one touch on the right capsule.
• Volume -: one touch on the left capsule.
• Previous song: three consecutive taps on the left capsule.
• Next song: three taps in a row on the right capsule.
• Play/pause: two consecutive taps on any capsule.
• Voice assistant: four consecutive taps on the right capsule.
• Reject calls: two consecutive taps on any capsule.
• Accept calls: two taps in a row on any capsule.
• Game mode: four consecutive taps on the left capsule.
• Activate/change noise cancelling mode: long press on any capsule.

The lower button at the bottom of the charging box allows you to reset the TWS. To do this, it must be pressed for 10-15s.

It should be noted that the Rose Ceramics have touch panels on the outside. They have a medium sensitivity, which has not improved in this respect. So you have to tap with the right frequency in order to be able to perform consecutive touches. You also get verbal notifications in English, about some actions, such as mode changes, when switching on or when entering pairing mode or connecting. The voice is very quiet, as usual, and the diction is unintelligible. The functionality to turn the TWS off/on by tapping has disappeared, nor is it possible to enter pairing mode by this tapping method. I have found pairing with some devices such as the Amazon FireStick or the Fiio BTA30 Pro to be problematic. The Fiio in particular is very difficult to pair with. Furthermore, it seems to remember the last pairing with a device and seems to want to reconnect to it even though it is unable to do so. Specifically, it seems that the connection with the Firestick is permanent, despite unpairing it, the moment I open the charging box it reconnects to it, preventing the connection with the Fiio. In order to work properly, I had to forget about the connection with the FireStick and carry out a very specific procedure with the Fiio. It should be said that with mobile phones or devices that have a screen the connection is easy.
It has a game mode in which the latency reaches 54ms. I have to comment that although Game Mode is activated, when paired with the Fiio BTA30 Pro or Amazon's FireStick, there is clearly a higher latency. Paired to my new Xiaomi 13T this latency is much lower and you no longer notice that lag on something as simple as YouTube videos.

The LED on the charging box is colour coded to indicate the charging of the charging box as well as the charging of the TWS.

• Red: battery below 30%.
• White: battery between 30% and 70%.
• Green: battery above 70%.

Sound

Profile

The profile of the Rose Ceramics X has changed with respect to its predecessor. If normally the profiles of Bluetooth IEMS are a bit strange, this time the Xs have a frequency response in HiFi mode that is much more realistic and closer to other IEMS. It even comes close to very famous planars and other very good conventional models. Its profile in HiFi mode resembles a balanced V, almost a soft W. There are hardly any differences between the HiFi and Rock profiles, only that the Rock mode has slightly less treble. The biggest difference is in the Pop mode whose frequency response is closer to more Bass-Heads IEM levels, as the sub-bass is emphasised and the upper mids and treble are reduced. In this mode the vocal response is lost and I don't quite understand why it is called Pop. Be that as it may, it is another more differentiated profile that may have its followers. But the real virtue of these IEMS is the HiFi mode profile and, above all, the increase in power and volume compared to the previous model, which makes the sound much clearer and closer to a wired IEMS. And this is not at all gratuitous coming from a person like me who has never had any sympathy for the sound coming from a TWS.
The following sound impressions I have taken into account using the Fiio BTA30 Pro connected to my PC in LDAC mode and HiFi response.



Bass

The first word that comes to mind when describing the Ceramics X's bass is surprisingly natural. It has a fairly compact, dry and tight bass, with a more classic behaviour of a normal dynamic IEMS in the same price range. They may not be the fastest and their decay is not stellar. But their sonority and behaviour is realistic and without artefacts. It doesn't feel coloured and doesn't suffer in the worst conditions of dirty, unfiltered bass. In these cases it is capable of a simple, but very effective tracking, bearing the weight of the bass and not making any glitches that turn the bass into meaningless muddles. On the contrary, they are quite faithful and defend themselves with great authority.
The bass has a good point of depth, without being predominant in the mix, but having a wide prominence, a good representation that is never polarising. Their level is a little above neutral, something I like, with a very well achieved presence and an excellent reproduction for the price and, above all, for an IEMS TWS.
Finally, in the very low frequency pure tone test is the surprise. The lowest note is truly realistic, with no undulatory character, but with a high physical and sensory behaviour that gives it a reliable and very natural sonority, at the same time deep and dark. With this behaviour it is no wonder that the bass is of such quality, even better than many IEMS with BA drivers that reproduce bass. With my mouth open.



Mids

I have to emphasise again that I like the profile of the Ceramics X. The male voices are slightly recessed, but retain a fairly acceptable prominence. Their timbre is realistic, very accurate and natural. The first half of the midrange is not dense but maintains a good level of base, body and physicality, but without being too generous, broad or prominent. It is above neutral, slightly warm but not dark or distant. This moves the profile away from a classic V and towards a more classic Harman profile, quite well implemented. The sound does not come across as dense, although these are not overly explicit or defined IEMS. They are technical enough, though, to offer a reliable and very adequate representation. Something that makes me forget that I'm using sub-$50 TWS.
The female vocals are a little further ahead in the mix, but I still consider the main virtue to be the organic, analogue realism with which things sound in this central range. Nothing sounds artificial, their timbre is natural, even rich, juicy and very enjoyable. There's nothing spectacular, it's slightly above neutral, but certainly the profile is very well implemented, even to cut back on sibilance. Being purists one could say that the midrange is a bit dry because the upper part of this range is a bit muted. But it is safe and still clean. It may lack brightness and a little more sparkle and liveliness. But I think that would have given it a poorer sound quality, because, perhaps, it would not have been able to match a good treble quality. So I think Ceramics X have done the best they know how to do, and in the right places, maximising their strengths.



Treble

Looking at the graph it is clear that the Ceramics X's treble is somewhat limited, nuanced, even delayed. But, surprisingly, they work. They don't explode in your face, but they are there, the treble is present and in a more realistic way than in other similar tunings. It is clear that the energy level is very controlled, that they are safe, but their sound is very efficient. It is possible that the double peak (the first one may be an artefact of the microphone, but there must be something to it) and the extension in the air zone have something to do with it, a lot, even. But the truth is that the treble is better than it seems, it is well represented in the mix and it gives the rest of the frequencies a realistic and quite rich in harmonics sonority and timbre. Perhaps the definition, the speed and the analytical capacity is not the best, it is true that the Ceramics X can suffer in very complex occasions, fast passages and syncopated treble. This can be the weak part. But music is not always like this and it is possible that we are reaching the limits of these excellent TWS.



Soundstage, Separation

The scene is predominantly frontal, but it is not too intimate as it has a good level of depth and laterality, without being 180 degrees. There is a certain level of height, while the positioning and image are more than decent. As there is not a very separate spatiality such positioning will not be explicit, but I find no fault and the elements are distributed in a smooth way, without overlapping, without sounding dense and with a certain level of air and separation that makes it quite pleasant and bearable. Macro detail is more than decent and is even easily perceived. Micro detail can be intuited if they are in close-up shots, but not expressed. But that feeling of ‘they seem to be there’ is enough in this kind of IEMS. I am convinced.



Comparisons



Conclusion

Those of you who may have read me before may know that I am not a big fan of TWS. But testing the new Rose Ceramics X I see a glimmer of hope. First, because their output volume is higher than many other TWS and without audible distortion. Secondly, because this time the sound does remind me of the sound of IEMS with lower priced cable. They are still not at the same level, but I can openly say that I was pleasantly surprised, so much so that I believe there is room for improvement. The qualitative leap from their previous Ceramics model has been huge: more volume, more power, better tuning and much better sound. It also has other improvements, such as LDAC and better battery life, all in the same shape. Unfortunately, it's not all positive, there are connection problems, something that could be fixed in future firmware updates, as it seems that the Ceramics X can be updated thanks to Rose's improved APP. And I'm looking forward to it, as it would make them my reference TWS.



Sources Used During the Analysis

• Xiaomi 13T 5G 256GB.
• Fiio BTA30 Pro.
• FireStick Amazon.

Purchase Link



You can read the full review in Spanish here

Disclaimer​

The Rose Technics CERAMICS X earbuds were provided to me by Rose Technics in exchange for making this review. I must note that they have not reviewed or dictated the content of this review and they did not influence or dictate when I should publish it! All opinions expressed in this review are my own and are all based on my personal experience with the product!
I would like to thank Rose Technics for providing the sample and thank you, the reader, for taking the time to read my review.

Introduction​

When Rose Technics announced their new Ceramics X, I was excited to check them out, and if all of what they promised is actually attainable for only 50$...
These earbuds promise wireless convenience, portability, and HiFi sound with LDAC decoding, and with features like Active Noise Cancellation (ANC), IPX5 water resistance, and an app to make controls much easier.
With all that, I was eager to dive in and see how they perform. So let's get into the review and see what the Ceramics X has to offer.

Unboxing​

The Ceramics X came in a sleek, small box with a picture of the earbuds and the name "CERAMICS X" on the front.
Ripping the box open, I immediately saw the IEMs case inside a plastic bag. Underneath, there was a Type-C charging cable and four sets of eartips in sizes XS, S, M, and L. I noticed that each size felt bigger than usual—XS felt like S, S like M, and so on. Additionally, there was a manual inside, explaining how to operate them.
What could have made it much nicer is if there was an included cover for the charging chase for more convenient use and carry without a fear of damaging the case...
But overall the unboxing is pretty simple yet still nice, especially for the asking price.

Technical Specifications and Features​

Specs​

• Audio Format: LDAC/ AAC/ mSBC/ SBC
• Playtime: 50H
• Charging Time: Approximately 40 minutes
• Interface Type: USB-C
• Bluetooth Version: 5.3
• Driver Unit Diameter: 10mm
• Impedance: 32Ω
• Frequency Response Range: 20 - 20000Hz

Features​

54ms Low Latency​

The Ceramics X offers a low latency with a response time of just 54ms, making it pretty suitable for gaming or watching videos without any noticeable delay between audio and visuals.

Noise Cancellation Modes​

Normal Mode: Disables all noise cancellation features to let you hear the earbuds' natural sound quality.
Active Noise Cancellation: Effectively blocks out noises and it makes it good for use in busy streets, buses, or trains. Switching between modes is easy with a long 3 second press on any earbud or through the Rose Technics App.
Wind Noise Cancellation: Reduces wind noise whistle which is very useful when walking outside on a windy day or riding a bicycle.
Transparency Mode: this mode allows external sounds to come through so you can stay aware of your surroundings. This one is great when you need to hear what's going on around you while you listen to your music.

IPX5 Water Resistance​

The Ceramics X is rated IPX5 for water resistance which means it can withstand sweat and light rain. This makes them suitable for workouts and outdoor activities, but still make sure to not swim with them haha...

Led Battery indicator​

green light when 70% and above, white light when in between 30% and 70%, and red light when 30% or below.

Battery Life​

The battery life on the CERAMICS X is actually impressive! Throughout all my testing, the battery never died on me during use. As long as I could sit and listen those earbuds kept going! I found that I only needed to charge the case after 4 to 5 days of regular use, which is very convenient for everyday use!

Touch Controls​

• Previous Track: 3 taps on the left earbud
• Next Track: 3 taps on the right earbud
• Volume Up: Single tap on the right earbud
• Volume Down: Single tap on the left earbud
• Play/Pause: Double tap on either earbud (also used for answering or ending calls)
• Activate Game Mode: 4 taps on the left earbud
• Voice Assist: 4 taps on the right earbud
• Control Noise Cancellation Modes: Long 3-second press on either earbud

Sound Performance​

Overall Timbre​

The Ceramics X brings a fun, V shaped sound signature that’s more engaging and lively. It has a focus on the bass and treble while keeping the mids slightly recessed, which is typical for this type of tuning. But overall the timbre is energetic and acually fun and nice to have, making it enjoyable for casual listening, as I, for example, am not likely to be listening critically when I'm on the go, whether it's in buses or a train. So this tuning is actually nice and even great for genres like electronic music.

Bass​

The bass performance of the Ceramics X is punchy and well controlled. The sub bass extends pretty deep and provides a satisfying rumble that adds depth to the music without too much overpowering the other frequencies. The mid bass is boosted enough to give impact to percussion and bassy instruments, making the sound feel full and lively. Despite the V shaped bass, the bass doesn’t usually bleed into the mids and is actually maintaining a pretty clear separation.

Mids​

The mids are somewhat recessed due to the V shaped tuning and can cause vocals, especially male vocals, to sound veiled. However, the upper mids are more present and allow instruments and high pitched vocals to shine through with good enough clarity and detail. This tuning makes the upper mids smooth, although the mids could benefit from a little boost to balance the overall sound...

Highs​

The treble on the Ceramics X is sparkly and detailed, adding a sense of airiness to the music. It handles cymbals and high frequency sounds with good shimmer. However, the treble can become harsh at higher volumes, so keeping the volume at a low to mid level is recommended for a better experience.

The combination of these elements creates a sound profile that’s both fun and engaging, with enough detail and clarity to satisfy most listeners.

EQ Presets​

POP​

This preset pushes the vocals and mids forward, making them more prominent in the mix. This setting pulls the bass and treble back, and I would say maybe even too much... and this creates a more vocal centric experience. While this can make the vocals stand out, it can also make the sound feel less balanced, as the bass and treble lose too much of their impact...

HiFi​

Now the HiFi preset aims for a more neutral and balanced sound, though it still keeps the V shaped tuning... To my taste, this one provides the best overall balance among the three presets. The HiFi preset is my favorite for everyday listening as it offers a more natural and detailed sound compared to the other modes, although I still need to EQ the mids a bit.

Rock​

The Rock preset pushes the bass and treble even more, pushing the mids further back. This creates a powerful and more energetic sound that is great for bass heavy tracks. The bass becomes more prominent and impactful and the treble gains even more sparkle. However, keep in mind that the mids can feel quite recessed, making vocals and midrange instruments much less on stage and maybe even pushed back to the background...

Technicalities​

Soundstage​

The soundstage is average in width and height for its price point. It gives a decent sense of space but doesn't offer an expansive experience. It’s what you’d expect for a $50 pair of TWS earbuds.

Imaging​

I was quite disappointed by the imaging... It was hard for me to pinpoint where the instruments were placed in the mix... The separation between different elements wasn’t as clear as I’d hoped, making it harder to enjoy more complex tracks.

Layering​

Layering is adequate. Instruments and vocals don’t get muddled together, but they also don’t stand out distinctly... It’s acceptable for casual, everyday listening, but it doesn't quite have the precision needed for truly HiFi sound.

Separation​

The separation is fine but not exceptional.... In busy tracks, instruments are somewhat distinguishable, but they don't stand out as clearly as I’d like...
but higher pitched instruments and vocals do stand out and get their space in the stage!

Overall, I'd say that the technical performance of the CERAMICS X is in line with what I would personally expect from a $50 TWS with active noise cancellation and a handy app with plenty of features. It’s good enough for everyday use but might leave audiophiles wanting more...

Conclusions​

The Rose Technics CERAMICS X earbuds offer an overall nice package for their $50 price tag. With features like LDAC, ANC, and a fun V-shaped sound signature. When considering all this, the CERAMICS X actually bring a lot of value to the table. The lightweight build, small form factor and comfortable fit make them great for long listening sessions, and the touch controls are easy to use and are very responsive!

While the treble can be harsh and the mids, particularly male vocals, can sound veiled, the overall sound quality is enjoyable. I feel that the bass is punchy and deep, though not overly powerful. Additionally, the various EQ presets provide some flexibility, and to my experience, the HiFi mode is offering the best balance of them.

With all this considered, I really think that the CERAMICS X earbuds deliver great performance and a very nice set of features for their price range, including an app, and all of this makes them a very solid choice, which I can easily recommend if you are looking for a budget and quality TWS earbuds!

Every product from Rose Technics has consistently impressed me; I particularly enjoy their iems such as the Starcity 5 Pro, QT9 MK3. They've also produced many others, like tws, the Rose Technics Earfree-i3 suits my taste. Now, they've rebranded under a new name, Roseselsa.



I've tried a wide array of TWS buds, ranging from so-so to good. I must say, the This TWS stands out for its sound quality at its price point—$46 without Super NC ear tips, and $49 including them.
Let's dive into what these TWS buds offer.
This Ceramics X comes in a minimalist. Inside, you'll find:
- Charging case with the earbuds
- Ear tips
- USB charging cable
- Some warranty and instructional papers





While the box looks sleek and minimalist, I preferred unboxing the Eafree I3, which had a protective solid black case for the charging case. However, what truly matters is the sound quality, which we'll discuss next after–The design, build quality, and fit first:
The design of this tws is reminiscent of Samsung Buds, etc, featuring a bean-shaped design that I personally like. The build quality feels solid; despite the name "Ceramics" it's actually made of high-quality plastic that looks quite attractive.



Regarding fit, you need to rotate the buds in your ears from front to back until they fit snugly. This adjustment is crucial for optimal sound quality and isolation. There's also an independent app called Roselink available for further customization on The Appstore.


Now, let's delve into the features and sound of these TWS.
The Ceramics X is equipped with a 1st generation Planck driver unit and features a flagship-grade carbon nanotube diaphragm and a 1.5T dual Tesla magnetic circuit system. These elements work together to reduce distortion and enhance sound density, dynamics, and transient response, delivering HiFi-grade sound quality.
It also includes independent decoding and headphone amplifier modules, paired with the Cadence Tensilica HiFi 5 DSP chip, ensuring authentic audio reproduction with detailed clarity.
This TWS has many features for noise cancelling, including normal, transparent, ANC, and also an independent "Anti-Wind noise" physical structure design that significantly reduces wind noise interference. Unlike regular ANC, the anti-wind feature doesn’t produce a whistling sound when cycling or running in windy environments.
It support LDAC for superior sound quality, perfect for enjoying both passionate pop music and serene classical melodies with high fidelity sound wise like CD quality might.
To optimize this, adjust your device's settings under System > Developer Options > find Bluetooth Audio section > and choose LDAC. and then enable it on Roselink app.



First time i noticed the sound quality, the Ceramics X emphasizes good neutral bright-ish signature with open midrange, crisp trebles, and good clarity, making it less suitable for basshead thack seeks tumpy bass but ideal for vocal clarity and people who like well controlled bass. However, it may be too sharp for those sensitive to treble and sibilance.
There are three sound EQ options on the RoseLink app: Pop, HiFi, and Rock.



Pop is my preferred sound profile. While it lacks the clarity of the other two options, it hits a safe spot. The vocals are good pretty smooth, and the upper and treble are not as bright, since the treble and upper not as push makes the bass feel deeper and puncier than the hifi option. although other instruments such as guitar, violin may not shine as much. This one will suit vocal lovers, especially if your playlist includes a lot of J-pop and K-pop like mine, where sibilance kicks in if the upper midrange is pushed too high.
Hi-fi offers the most clarity, and while I enjoy treble, pushing the upper midrange 'too much' is just not for me. This hi-fi model definitely boosts the upper range a bit too much for my taste. Although reducing the volume helps to tame it somewhat, I still feel the harshness. However, I believe this could be a favorite for some people.
Rock also pushes on the upper frequencies, but not as aggressively as Hifi. It strikes a balance with more noticeable bass than Pop too, and the treble and upper frequencies are less pronounced than in the Hifi mode.
As per teknicalites, all of three has same quality, the stage doesn't narrow and i feel it wider than some of my iems in the same price even, good resolution, and for imaging it is solid. even though its not most dynamic set out there, find they still deliver impressive quality for such an TWS.



Additional info of the Ceramics X
As for battery life, it's pretty solid. It can last up to 10 hours on a single charge and up to 50 hours with the case, which is really efficient.
It's also got an IPX5 rating, so while it's not fully waterproof like IPX7 or IPX8–that you even can use it for swimming, it still can handle low pressure water stream from any angles and rain easily. Great for activities like jogging, cycling, and hitting the gym, both indoors and out.
Plus, it supports dual-device connectivity, so you can switch between devices without any hassle. And with 4 GoerTek silicon crystal microphones and AI-powered noise cancellation, your calls will come through crystal clear.
And if you're a gamer, the Gaming mode with its low 54ms latency ensures you stay on top of your game in FPS and rhythm games.

Pros.
+Lovely design and light weight
+IPX5
+Battery efficiency
+Clarity + Vocals lover will love this
+LADC provide high quality cd like sound
+Lots featured + has an app
+Well Controlled and puncy bass

Cons.
-The packaging and accessories doesn't as good as the i3 or maybe the predecessor, such as it lack of the solid black case that rose technics always provide.
-Too much clarity and brightness for some people maybe, but the pop eq sound fine for me.
-Not for basshead

To sum it up, the Roseselsa Ceramic X TWS buds are perfect for those who appreciate clarity and are passionate about vocals. They offer impressive battery life, good design with an IPX5 rating, and seamless dual-device connectivity, catering to both daily use and active lifestyles..

Rose Technics CERAMICS X

If you don't like reading, here's a video version of this review:

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Disclaimer & Foreword

Rose Technics provided this review sample to me free of charge in exchange for my opinions.

I prefer to focus mostly on the audio quality in my review, not the features.
Battery times was of little consequence to me because it was so good - when something works, you don't notice it.
Transparency Mode was pretty terrible, so I never used it after initial testing.
The IPX5 rating is a great feature, but nothing I can test.

My 3.5 Star rating is based on the combination of sound quality & features.
If it was sound quality alone, it would be a 4/5.

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Build, Design & Aesthetics

At around $45, the Ceramics X sits just below the EARFREE i3 in the true wireless line-up, but has even more features.
Immediately it is evident that some corners had to be cut to achieve this price.

The case feels much cheaper, especially the hinge which doesn't have quite as satisfying a mechanism. The buds themselves also feel very light and toy-like, especially compared to the EARFREE i3.


The version I was provided was without the 'Super NC 200' foam tips so my impressions are all from using these with the very standard stock silicone tips.

The case actually feels very nice and smooth in the hand, and is a very typically small pill shape that should very easily fit in and out of any bag or trouser pocket.
The buds however, due to their small size and lack of stems, can be quite challenging to use and fit into the ears.

I personally found it quite difficult to guess exactly how strongly to press them into my ears, and the exact angle to get the correct tip insertion depth and fit.

Also, using the medium size tips, these are the only IEMs I've ever used that turns the tips inside out when I take them out of my ears, which on one hand can be a frustrating extra step to fix before putting them back into the case, but it's also reassuring that the provided tips do make a very secure fit in my ear canals, as that is the only real anchor point for these.


On the flipside, once they're seated in the ears, they are more comfortable than average, have practically zero chance of falling out, and I noticed that I can chew gum without affecting the bass seal or affecting the sound; a surprisingly common problem with many other IEMs.

Also, I found the touch controls much easier to use on these than the EARFREE i3, with fewer unregistered touches, but also more accidental touches when taking them in and out of my ears.

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The App

The Rose Link app is just about feature rich enough to get by.
The main UI features left and right battery indicators and buttons for the 4 different modes:

Noise Cancelling, which is your average ANC.
Wind Noise, which cancels external wind noise.
Normal mode which turns off all special modes.
And Transparency which picks up and feeds certain frequencies in the upper vocal range.


Next is the Lossless Audio Protocol menu.
It simply lets you chose between LDAC and AAC/SBC.


Below that is the Game Mode toggle which when turned on sacrifices lossless audio for improved latency, which is essential for watching videos or mobile gaming, but I would still not recommend these for competitive gaming, as there is still the tiniest of delays in the sound that average consumers, let alone pro gamers would notice, even while watching videos.

Then finally is the Dual Device Connection toggle which allows them to be connected to multiple devices at once for seamlessly switching between devices, such as smartphone and PC while working.

In this case, while this feature is turned on, you will sacrifice LDAC, and the app automatically defers to AAC/SBC.

At the bottom of the main UI, you can switch between the Earphone Control menu, which we have already covered, the Touch Settings menu which allows you to set the different functions for Single, Double and Triple taps on both left and right buds and finally the Settings Center menu that you may only need to change language or check for updates.

The App is also unfortunately not without it's bugs.

As of writing this review, I updated to version 3.0.5(4062) which did fix one older bug where the reconnect button (shown in the middle of the image) would not work after switching between wireless protocols, but I would still prefer that the app reconnect to the IEMs automatically, without human interaction.

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The Sound

This is where things get interesting.



The CERAMICS X has a very healthy Harman-like bass shelf response, with even a very slight emphasis on sub-bass between 10 and 20hz. This is actually a near-perfect bass tuning for outdoor use where external noise interference can and will reduce bass perception, whether ANC is on or not.
The only thing I would add is that this can introduce some boominess depending on the music recording and volume.

The mids are generally well controlled, and the hump between 1-2KHz suits my ears very well, but may be too forward for those who’s ears prefer the dotted-line target graphs.
Personally I would have preferred less of a peak around 5KHz, but that’s something easily remedied by even simple equlalization.

The treble is actually quite piercing at times and I found that with some specific recordings, I had to EQ the upper treble down by around 8 decibels to make these comfortable, but on the whole, this boosted area gives the CERAMICS X a kind of artificial ‘air’, which tricks you into thinking you’re hearing music from a greater sense of space. It’s interesting to see this kind of trick being used, but it doesn’t mesh with all recordings.



One more positive thing I can say about these, is that the tuning between modes hardly changes at all, with only the pure ANC/Noise-Cancelling mode having a very slight difference in the sub-bass and lower mids around 1KHz, so you only need to set one EQ profile for these no matter which mode you're going to use, and switching mode shouldn't obviously change the tone.

Another great feature is the Wind Cancelling mode. Something I found very annoying on the EARFREE i3 was that when using Noise-Cancelling on the street, the microphones would pick up wind noises on their microphones, so on windy days I was stuck with using them in Normal mode, which at least didn't amplify wind, but also didn't reduce external noise.

The CERAMICS X does an excellent job of reducing wind noise. In this mode, it very specifically ONLY reduces wind, so while it doesn't reduce typical external noises like plane engines or city traffic, it does make them significantly more enjoyable and listenable in very windy situations, which I personally think is a very handy feature that helps to explain the price of this product.



I tested this by sitting in front of a floor standing fan at full power, and I took them to a very windy day at the beach. The CERAMICS X passed both tests.

Finally, I would sum up my impression of the sound as more than adequate.
The stock tone can be a touch too sharp and piercing, overall clarity is very fair at this price point, but imaging is a touch lacking and some recordings can feel somewhat lacklustre in presentation.

Of course, it’s far better than the typical consumer fodder, and I’m happy to say it’s in around the same league as the EARFREE i3, but also something entirely different.

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Environmental impact

This type of product is completely unrepairable for the normal consumer.

There may be shops that specialize in repairing PCs, laptops and smartphones that could perform microsurgery on these when the tiny rechargeable batteries inevitably die, but even then, the repair costs would be prohibitively expensive for such a cheap product, even if repairs were guaranteed, which they are not.

I find it impossible tofully condone these types of convenience products that are destined to become e-waste.

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Conclusions

From a moral standpoint, there is no way I could recommend a product like this based purely on it's sound quality, because of it's lack of repairability.

But, as a convenience product that seeks to provide the consumer with a set of features at cost, these clearly fit into the market.

If you're only going to use these for the occasional bike ride, or workout at the gym, I can absolutely see these becoming an essential part of that routine, even for the average consumer audiophile.


We're definitely going to see more of these types of products from almost all manufacturers, where the best technologies have trickled down in a more diluted form to reach the masses at more affordable prices, but I hope the next big step in this area should be environmental consciousness, as lower prices are only exponentially increasing the problem, and something like simply fixing the frequency response to cater for more discerning ears will only be enough to justify higher asking prices, and not enough to satisfy the increasing number of environmentally conscious consumers.

After two previous wins for Rose Technics with the EARFREE i3 and Star City 5 Pro, I’m happy to say that they have not produced any lemons so far.

Introduction​

For my evaluation of the Ceramics X, I brought it and 2 other more expense TWS sets with me on a recent ‘Camino’ walking holiday across France and Spain. I thought this was a great way to evaluating every aspect of these TWS sets as it involved a few flights evaluating how good ANC was on each, then some long days when I needed something both with good comfort and long battery life.

I also had few long work calls where I could test the microphone quality while walking and this long usage gave me an appreciation of how easy or not it was to use the various controls on each set. And most importantly of all I got some very long listening sessions where I could really evaluate what makes a great ANC.

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Slight spoiler for this review, even though the Ceramics X was the cheapest TWS that I brought with me, it was the one that I consistently reached for during this trip due to its excellent tuning, good microphone and overall comfort.

It is also represents a significant update in sound and features over the previous TWS I reviewed from Rose Technics, the EarFree i3. So my experience with the Ceramics X has been very good but there are still things I would have hoped would be better so read on to see if it is the perfect TWS for you.

Note: I would like to thank Rose Technics for providing the Ceramics X for the purposes of this review. It currently retails for very reasonable $48.99. Check out Rose Technics Product Page for more details.

Unboxing and Accessories​

The Ceramics X comes in simple straight-forward box:



Opening the box you get:



Removing the case you see the rest of the box contains sections for the eartips and the usb-c cable:


The charging case itself has a lovely round shape with good quality coating to protect it from your keys when it is in your pocket:


Opening the case you see the earbuds securely stored:



The blue plastic makes sure the battery is only activated when you first open the box:


and multiple pairs of ear tips:



Note: The case is actually big enough that I actually did a bit of tip rolling and bought some much larger ear tips with my for optimal seal and comfort. The cavity within the case is big enough to accommodate much larger eartips than the stock tips provided.

Here is a picture of one the alternative eartips I used with the Ceramics X compared to one of the stock eartips:

Here are 2 of the alternative XL tips I tried on the Ceramics X:



The nozzle on the Ceramics is not particular large, so it should be easy for you to find alternative eartips for your preference:

Features​

Next, Let’s get into some of the hardware and software features:

Bluetooth Codec support​

Supporting both LDAC (for superior Audio on Android) and AAC for Apple Devices the Ceramics X is well-equipped. It does lack the new AptX ’lossless’ codecs, but I would not have expected that codec to be licenced at this price, for me, while it’s always nice to have the ‘best’ codecs, I believe until we get truly lossless wireless audio (it might ultimately involve some alternative to bluetooth) I am mostly happy with AAC on apple devices and anything better than SBC on Android (so LDAC is great).

Hybrid ANC Technology​

Utilizing a Hybrid ANC Technology, the Rose Technics claim to get a deep 55dB noise reduction at an ultra-wide frequency range of 4000Hz. In my testing and comparisons, the Ceramics X did an excellent job on my Airplane trip and a good job while walking near some noisy roads but with the stock eartips I did not get as good a seal as I did have to use my custom eartips to get that Seal and therefore get optimal ANC, I would suggest try the various stock tips but try third party eartips.

Anti-Wind Noise and IPX5 Water Resistance​

The Ceramics X features an independent anti-wind design, which significantly reduces wind noise interference. When out walking as I was for more than a week, wind can cause some horrible interference when the ANC is enabled but the Ceramics X worked well for me. This is one of those features you almost forgot about unless you haven’t got it and one of the other TWS I bought with me did not have an Anti-Wind feature, and it was very noticeable.

The IPX5 water resistance rating is great, some of the hotter days ( it reached 36C one of the days ), so my ears where soaking from sweat, so the IPX5 seemed to work well.

Long Battery Life​

With a rated charge of 10 hours of playtime, and the charging case extends this to 50 hours. My longest day with 7 hours walking, but with ANC enabled, the Ceramics X started to warm me at roughly 6 hours into that particular days walk which is still pretty great. I imagine without ANC it would have lasted the full 10 hours. In fact, I think I only charge the Ceramics X case, once during the whole trip so the rated battery life is mostly pretty accurate.

Dual-Device Connectivity​

Ceramics X supports dual-device connectivity, on my trip I didn’t have need for this dual connectivity though I did test it with my iPhone and Macbook Pro before I left on the trip and it worked well. In fact, this feature is amazing for those of who like to measure the difference ANC and EQ settings available as the Macbook can stay connected to the TWS while the Mobile App can be used from your Smartphone at the same time to accurately change the ANC modes and other EQ.

Superior Call Quality​

I was very impressed with the microphone quality (as was the people on the conference calls I had to join while on this trip) especially considering the earbuds do not have ‘stalks’ which typically hold microphones away from your ears.

Roselink ‘Companion’ Application​

One of the most important features of the Ceramics is that it has a pretty good (though not perfect) mobile companion application.

So lets dig into the features of the companion application.

Firstly, when you launch you get a list of teh RoseTechnics devices you have:



Note: If you have one connected you can click ‘connect’ and it will bring you to that device to view its ‘home screen’:


This screen gives you the battery status, you can switch ANC modes and can switch to one of the 3 pre-defined EQ modes. There are few other key screens within the App.

For example, the configuration of the clicks on each ear tip:




And the check firmware version screen:


Note: My Ceramics X immediately updated its firmware when I first connected it to the companion Application.

There are also some help screens and some language configuration options within the App.

Some Application limitations:​

The App is not perfect, it has some annoying popup notifications, e.g. when I stop using Ceramics X, there is often a popup notification that I really do not need as I know I have stopped using the TWS set.

I would also like more EQ capabilities, while it’s nice to have 3 different options I feel it is lacking a 10 band EQ or ideally a PEQ. This was definitely an area where the Ceramics falls behind the other 2 TWS sets I brought with me.

Overall it is a good but fairly basic ‘companion app’.

Sound Impressions​

Here are sound impressions for the Ceramics X TWS using the HiFi profile:

Bass​

The Ceramics X offers excellent sub-bass extension with a slightly warm mid-bass. This provides a solid foundation for tracks like Massive Attack’s “Angel,” where the deep baselines are full and resonant without overpowering the rest of the spectrum.

Midrange​

The midrange is where the Ceramics X shines, with vocals, particularly female vocals, brought slightly forward. This is evident in tracks like Norah Jones’ “Don’t Know Why,” where her voice is clear and prominent, adding an intimate feel to the performance.

Treble​

The treble is tuned a little dark, ensuring that there’s no sibilance or harshness, even in tracks with brighter instruments. A track like Steely Dan’s “Aja” showcases this smooth treble response, providing a relaxed listening experience.

Soundstage/Imaging​

The soundstage is a bit narrow, but the imaging was excellent allowing instruments to be placed accurately within the mix. Pink Floyd’s “Money” benefits from this, as the distinct placement of the cash register sounds and guitar riffs creates an immersive listening environment.

Overall it’s a great sounding TWS.

Specifications and Measurements​

Measurements​

Note: All these measurements are available on my measurement DB here

First lets check the Frequency response - I found the Rock and Hifi profiles were very similar with the Hifi having slightly more treble:


The Pop profile on the other hand is oddly tuned, I would have thought that would be more V-Shaped but in my unit it was lacking in the treble:


There was very little difference between ANC on and ANC off - just a subtle difference in the sub-bass and the mid-range:


Finally, the distortion was pretty well controlled (so you can easily use your own EQ without causing):


As a percentage it was always less than 1%:



I would love Rose Technics to add EQ and ideally PEQ capabilities to their App but given how good the Rock and Hifi tuning where I can’t really complain that it needs EQ.

Rating​

I have given the Ceramics X a pragmatic 5-stars, at its price of $48.99 it offers a quality TWS set with good audio quality and nice features. I hope Rose Technics continue to improve the ‘companion’ mobile app as I do feel it lacks some features and ‘polish’ compared to other similar companion apps though those TWS are typically much more expensive than the Ceramics X.

Conclusion​

The Rose Technics Ceramics X gets a lot of things right especially for the price. I do like the case and the long battery life, the voice quality is good on calls and while it is a pity we do not yet have customised EQ within the Companion App the default tuning for the Ceramics X are excellent out of the box.

Overall, I think at the sub $50 price range this is the best TWS you can get.

Technical Details:
Audio Format
LDAC/ AAC/ mSBC/ SBC

Playtime
50H

Charging Time
Appr. 40min

Noise Control
Hybrid ANC / Transparent

Interface Type
USB-C

Bluetooth Version
5.3

Driver Unit Diameter
10mm

Impedance
32Ω

Frequency Response Range
20 - 20000Hz


The Rose Technics Ceramics has been upgraded to the Roseselsa Ceramics X, an enhanced version of their TWS ceramics series. The new model is priced at double the cost but includes additional features.
The Ceramics X is packaged in a compact box with a perforated seal to ensure it hasn't been tampered with. Inside, you'll find the device, accompanied by the charging case and tips, as well as a small cable.
They are compact and lightweight, with a round shape that fits comfortably in my ears, and the case is also small, easily fitting into my pocket.
The call quality is surprisingly good and clear. I experienced a connection issue with the Pixel Pro phone, but it was quickly resolved, and the earbuds connected well with other phones and the computer on the first try. It boasts numerous beneficial features such as multi-device connection, mono mode, gaming and music modes, and hybrid ANC. With a long press on the touch controls, you can toggle between ANC on, off, wind, and transparent modes.

Sound:
The Roseselsa offers a considerable amount of detail in the lower end; the sub-bass is deep yet not overwhelming, varying with the type of music, while the mid-bass is less pronounced but delivers a quick impact and solid performance. The bass possesses a satisfactory texture and moderate decay.
The midrange is fairly transparent, exhibiting slight warmth and brighter upper registers. Vocals are prominently positioned ahead of the instruments, with both male and female vocals displaying vibrant energy. The vocal texture is moderately detailed, presenting a slimmer profile compared to most otherTWS with ANC. This characteristic is not detrimental; rather, it complements the overall signature, ensuring clarity without muddiness or being overshadowed.
The treble is quite relaxed, offering sufficient airiness and sparkle to be enjoyable without being harsh, and it sounds reasonably spacious.
Staging is comparable to the original, offering a space just outside the ears, and it presents with decent placement and details compared to others in this price range.


The Ceramics X provides a mix of enjoyment and solid technical performance, boasting an extensive array of features for under $50. It's an improvement over the original and a great option for those seeking an affordable TWS with ANC.