Custom Bluetooth cables for in-ear monitors and headphones - the first of its kind on the market. Powered by Bluetooth 4.2 featuring aptX technology, TrueWireless Stereo, multipoint support, built-in microphone, long battery life and wireless range.

Plussound Custom Bluetooth Cable


Recent Reviews

  1. B9Scrambler
    plusSound Exo BT: A Premium Wireless Experience
    Written by B9Scrambler
    Published Nov 16, 2017
    Pros - Sound quality - Nice materials - 10+ hour battery life - Customization options
    Cons - Large control module - Static with some earphone pairings

    Today we're checking out a Bluetooth cable from plusSound, the Exo BT.

    plusSound is pretty well known in the world of portable audio for their premium cables. This year they've branched into the world of Bluetooth modules with the Exo BT. Given the prevalence of cell phone users and the slow removal of 3.5mm aux jacks from many flagship products, plusSound's offering of a premium Bluetooth module seemed like a logical step to take in advancing their product lineup.

    I've spent two weeks with the Exo BT and while it's not perfect, it's a great sounding Bluetooth module that makes a worthy addition to a premium portable earphone setup. Let's check it out in greater detail, shall we?


    I would like to thank Christian at plusSound for sending over a sample of the Exo BT free of charge for the purposes of review. There has been no monetary incentive provided to cover this product. All comment and feedback within is my own and does not represent plusSound or any other entity.

    At the time of review, the Exo BT's retail price for the standard copper (type 6 Litz) cable version shown here was 149.00 USD and could be picked up on their website;

    In addition to the MMCX version shown here, you can specify your preferred connector from a surprisingly extensive list, in addition to the quality of the cable which adjusts the price accordingly.

    Cable options.jpg Connector options.jpg
    Edit: If you don't like the module to one side, they can place the module at any position, including in the middle like a pendant, simply by requesting it. You can also specify desired length if you want the module hanging down or up more. I suppose I shouldn't be surprised at how customizable the Exo BT is given it's handcrafted. Good on plusSound for giving customers those options.
    Personal Preferences:

    I listen primarily to various EDM sub-genres (liquid drum and bass, breakbeat, drumstep, etc.), hip hop, and classic rock. While I enjoy a variety of signatures in my headphones I generally lean towards slightly warm with elevated treble and sub-bass, an even and natural mid-range response, with reduced mid-bass. The HiFiMan RE800, MacaW GT600s, and thinksound On2 offer examples of signatures I enjoy.

    Sources Used:

    On a daily basis, there are three sources I use as my main listening gear. My phone which is an LG G5, my portable media player, a Shanling M1, and my laptop which is an Asus FX53V. All three of these sources are Bluetooth capable, while to my knowledge only the LG and Shanling support aptX. In terms of music, I didn't go with anything specific this time running everything from basic MP3 CD rips to FLAC, Youtube, Soundcloud, etc.

    20171101_150821.jpg 20171101_150839.jpg 20171101_150941.jpg
    Some Features:

    The Exo BT is a fairly feature rich module and utilizes Bluetooth 4.2 for greater efficiency and stability over older versions. AptX is also supported which is intended to improve sound quality over non-aptX supported devices. It also improves on latency and reduce the delay time in transmissions.

    My laptop does not support aptX so while watching Youtube and Netflix with the Exo BT, there was a minimal delay between movement on screen and what you were hearing. Compared to most of my other Bluetooth devices it was an entirely acceptable level of delay and perfectly watchable. That said, compare it to watching the same video while paired to my LG G5 which does support aptX and the results were immediately noticeable in that everything synced pretty much perfectly. It was impressive actually.

    The Exo BT also supports pairing with two devices at once, and auto-pairing on startup. Both of these features worked flawlessly. The auto-pairing feature was unusually quick too, usually reconnecting with the device in less than a second after the Exo BT turned on.

    The inline controller also includes a microphone which in the two weeks I've had this device I never had the opportunity to use. When this happens I usually record a few quick videos in various environments to see how the mic sounds, but my G5 refused to recognize the Exo BT as the mic. I'll update this section as soon as I can. The rest of module works well. The buttons can be located without looking and are easily discernible from each other, though I found it slightly unintuitive to place the volume up button on the bottom, and volume down up top. This consistently led to me to changing volume in the wrong direction or restarting a song when I meant to skip to the next. It's definitely something you'll adjust to in time, if it's an issue for you at all.

    All-in-all the Exo BT has the sort of modern feature set you would expect to see in a premium device and it all works about as well as you would expect.

    Range and Connection Quality:

    A 40 foot range is also advertised, but unless in a open space I don't really see that happening. While building our new dinner table I left my phone in the dining room and walked over to the spare room to grab a different tool. This trip is only around 25 feet and with zero obstacles. My tool box is on a shelf beside the doorway, and to get to it I had to break line of sight with the phone by turning the corner. The moment I lost sight of the phone the connection broke. If I stepped back into the doorway, it was fine. While it's a dedicated Bluetooth device, this was not an issue experienced with the Nuforce BE6i which maintained a solid connection regardless of where I was in my apartment in relation to my device.

    Connection quality for the most part was rock solid in regular use, with only the occasional stutter here and there that I expect from any Bluetooth device. The connection only dropped fully when entering and exiting my apartment building. There's a ton of security equipment monitoring the entrances so I'm not entirely surprised at the interference. It's annoying sure, but not something that carried over into regular use.

    Battery Performance:

    Depending on where you look, the Exo BT has a battery life from 10 to 12 hours. I got closer to the 12 hour mark shown in the Quick Start guide plusSound will send to you after you make your purchase. To put that time into perspective, I'd generally leave the transmitting device on 50% volume and adjust volume via the Exo BT's buttons. Out of 20 volume steps, I would generally listen at around 6-8 dependant on the track and earphone.

    PlusSound doesn't seem to document the time to charge anywhere, but via USB out on my laptop around 4 hours seemed to do the trick. The Exo BT to my surprise supports quick charging, so if in a pinch you can quickly juice them up pending you've got a quick charger on hand. Also a plus is that you can use the Exo BT while it's charging though it's cumbersome to do so and increases the already lengthily charge time. Still, even if you aren't likely to listen while charging having the option is nice.

    Lastly, the Exo BT supports a battery life indicator on some devices. My LG G5 is one of them and at the top of the screen places a tiny battery icon beside the Bluetooth logo. I never realized just how helpful such a seemingly obvious feature could be. Whereas on other devices after a couple hours I start dreading the appearance of the low battery warning, that little indicator gives me an idea of when the Exo BT is going to run out. It doesn't sound like much, but it's enough to alleviate any “range anxiety”.

    Build and Comfort:

    Give the Exo BT can be so readily customized at the time of order, I wasn't surprised to read they were constructed by hand in California. PlusSound's crew does a great job because the Exo BT feels like a well put together and durable product, though fit and finish isn't quite as tight as some other products I've used. Again, they're handcrafted so I can forgive some slightly off kilter cuts on the heat shrink surrounding the MMCX plugs. Unlike Head-fi's resident basshead, the left and right indicators on my sample were properly marked with the standard blue for left and red for right. Given the Exo BT is designed for over-ear use only, left and right indicators are more a luxury than a necessity since you can really only use the cable one way.

    Since the earphone you choose to pair with the Exo BT will affect how they fit, I'm going to to focus on a couple specific characteristics, namely the elephant that is the control module, and the hook shape preformed into the cable.

    (See my edit in the Disclaimer section above. Seems a couple of my concerns about module placement can be avoided.) The module is massive as a result of holding the battery and electronics. It is positioned on the right in a place that keeps it sitting just a couple inches from your ear, lightly resting up against your jawline or the back of your cheek. While it is huge, it's not a heavy unit so it doesn't imbalance the cable which was something I was afraid of on first unboxing. Still, such a gigantic module seems wholly unnecessary. With the next version of the Exo BT would love to see plusSound take a different approach, such as splitting the battery and electronics into two separate modules on either side. Or, maybe just centre the module on the cable, though that would make using it less convenient.

    The preformed hooks are a bit of a mixed bag. With some earphones like the MacaW GT600s and Fidue Virgo A85 the angle of insertion ended up being a little extreme requiring some finagling to get the right fit. Others like Campfire Audio's Polaris and the Brainwavz B400 sat just right without any fiddling. If the cable extrudes from your earphone at a 45 degree angle or more, you might find fitment with the Exo BT less than ideal.

    Whether you opt to dangle the cable behind your head or under your chin will likely have a significant effect on comfort as well. For me personally, I had to wear the Exo BT under my chin. The length when worn behind my head meant the cable kept catching on my collar or jacket and tugging which got tiresome. Wearing it under the chin with the cinch pulled up was much more stable and comfortable.

    Overall they're pretty well built. Comfort can be very good, dependant on the earphone you're pairing it with and the orientation of the cable; under the chin or behind the head.

    Earphones Used For Testing + Sound:

    Campfire Audio Polaris:

    Impedance – 16.8Ω @ 1 kHz

    Sensitivity – 97.5 dB SPL/mW

    1+1 hybrid

    Fidue Virgo A85:

    Impedance – 20Ω

    Sensitivity – 107dB

    1+2 hybrid

    Brainwavz B400:

    Rated Impedance – 30Ω

    Sensitivity – 115dB

    Quad BA

    MacaW GT600s:

    Impedance – 16Ω

    Sensitivity – 98dB @ 1kHz

    1+1 hybrid

    Hilistening HLS-S8:

    Impedance – 16Ω

    Sensitivity – 99db

    1+1 hybrid

    ADVANCED Model 3:

    Impedance – 16Ω +/-15%

    Sensitivity – 100dB +/-3 dB at 1kHz

    Single dynamic (6mm)

    TinAudio T2:

    Impedance – 16Ω

    Sensitivity – 102dB

    Dual dynamic (6mm+10mm)

    The Exo BT does a great job of staying out of the way, retaining an earphone's stock signature. It doesn't colour the sound, but it reduce micro-details somewhat. It's not particularly noticeable with every earphone, but in some like the Campfire Audio Polaris it does come across slightly smoothed over and less precise. In the case of the B400, it's magical imaging and layering qualities are wonderfully preserved. Being able to take an earphone with those qualities on the go without having to worry about a cable is simply awesome.

    My only qualm with the way the Exo BT sounds comes down to background noise. Impedance and sensitivity certainly play a part of course. Of those earphones I tested, the Model 3, GT600s, and HLS-S8 were the only ones that played free of any static. The Brainwavz B400 displayed some, but it was very minimal and easy masked even at the low volumes I tend to listen. The Virgo and Polaris definitely picked up more background noise than the others and needed more volume to mask it, but the listening experience wasn't compromised. Last but not least, there is the TinAudio T2. In my preview I noted the T2 suffered the most. Over the last couple weeks I went back to it a few times and in the end, couldn't pair it with the Exo BT any more. The background static was just too prevalent.

    Overall the Exo BT works well with a number of different products, it just seems to be a bit of a luck of the draw situation as to whether you'll experience background noise or not.

    Vs. ADVANCED Model 3 Module:

    My only other Bluetooth module is that included with the Model 3 from ADVANCED. If you're looking to upgrade from a more budget friendly module like that included with the Model 3 to something more premium, is the Exo BT worth it? The answer is yes.

    In favour of the Model 3, I find it to be the more ergonomically sound of the two with a better layout in terms of control and battery placement. The Model 3 uses an odd figure 8 style design with two modules. The bottom half loops around your neck and houses both modules. The lowest module rests on your chest and houses the inline controls and wireless tech, while the upper module rests behind your neck houses the battery and microUSB port. Protruding from this battery compartment are the cables that lead up to the MMCX connectors and some preformed memory guides. It's a bit awkward to use at first, but once you've gotten the hang of wearing it the Model 3's module is a great example of how to divide and hide all the components that go into a Bluetooth product.

    In the Exo BT's favour is pretty much everything else. It feels tougher and more durable. It pairs better with a wider variety of products. The Model 3 really only works with single dynamic earphones. The BA's on hybrids just do not sound right. The Model 3's battery life is decent, but at five hours is less than half of what the Exo BT can achieve. The Exo BT's connection quality is also notably more stable. The Model 3 pairs well with some devices, and terribly with others. Lastly, while both support aptX the Exo BT simply sounds better regardless of the source. Listening to them back to back the Model 3's module sounds more digital and less natural, and it lacks the pushing power of the Exo BT.

    The Model 3 is a good product and you get a lot for your 79 USD. That said, its budget nature really sticks out when comparing it to something that's designed for a more discerning listener. The Exo BT is more stable, lasts longer, pairs better with a wider variety of products, and it feels more durable.

    Final Thoughts:

    After spending a couple weeks with the Exo BT and pairing it with a number of different earphones, using it outdoors and in, and in general treating it like I would had I bought it myself, I've come away pretty pleased. I think the module could be handled differently in a future revision, but that's about the only major concern I have with it beyond static when paired with a few specific earphones. The sound quality is there, it's well built, battery life is pretty good, and it paired well to great with most of the earphones I tossed its way. It doesn't blow me away in any particular regard, but that's fine because it works as it should.

    If you opt to pick up one of these Bluetooth cables, I don't think you'll be disappointed. PlusSound has a solid product here.

    Thanks for reading!

    - B9Scrambler
  2. Hawaiibadboy
    Make the Good ear gear "To go"
    Written by Hawaiibadboy
    Published Nov 4, 2017
    Pros - Build quality,
    Cons - Odd fit on some IEM. Controller box big (very light though)
    I wanted to try a 2 pin for the Audeze since it is kinda ghetto stock IMO.

    I contacted him and he sent me the BT version after some back and forth.

    I like the Blue Benz

    You wanna try the white one?

    Um actually.


    I admired the car salesman like vibe.

    And hell, BT buds suck pretty much so picking my own 2 pin set and making them BT is pretty damn convenient. I got em for free so my White Benz feels pretty damn fine.

    Does free make a difference in a positive review?

    What am I, a robot? it probably does on some level but I got complaints so not enough to prevent sharing that so no.....wait...I am a robot!

    Comes in a nice box.
    Who cares?

    Box people care...that's who!!


    Now look at this pretty picture


    I thought the red would indicate (right) but it actually goes only on left of isine20

    Red is left on all IEM tried and the notch on the rubber surrounding the termination might be better if it has no bend. Easier to wear down or make earhooks or he could on request though cable is short so there is limited cable to work with.

    Everything was worn upside down or backwards so maybe this set was a mistake?

    If I turn the logos facing inside they fit a bit better on the 64 Audio U12 but not great. i gotta think this is an odd set.

    Red is left and logo turned in makes them fit better on some sets.

    LEAR Ae1D
    Shozy hibiki


    From PlusSound,

    The red is right side with screws required to face outward, as provided in the instruction card. The only exception is with Audeze units which has the groove reversed, but red is still on the right. When customer specifies Audeze, we know not to include the cable bend. Otherwise, it would have it to make it more comfortable.

    Pairing with all DAP's with Bluetooth was very simple.

    Keep holding button down until red and blue blink rapid and look for it on the DAP and pair.

    Had no issues with any device



    My man cave has Hawaiian beach towels on the ceiling


    Stay gangster.



    Take whatever the fu you like with you and suffer no audible loss in quality.


    Unit housing kinda big .If i wear the cable behind my head like some Sony sets it fits better on the U12 and Hibiki but then I have to reach behind my head to touch the controller which is right behind my ear


    If you have a set where the plug is on top and not bottom this is something to consider

    Thanks to the guy who sold me the white instead of Blue Benz.

    It was free

  3. Cinder
    Perfect Paradox
    Written by Cinder
    Published Nov 1, 2017
    Pros - Great microphone and battery life, good construction, lots of customization options, several pricing tiers, can power large and inefficient headphones
    Cons - Bluetooth module is a bit large making it unwieldy in active situations.
    Plussound Bluetooth Cable Review: Perfect Paradox

    It’s not often I have the privilege of reviewing such a unique product. There’s something endearing about Plussound’s earnest attempts to blaze the trails of custom Bluetooth cables. It’s not easy, as there are a lot more parameters to deal with than when making standard analog cables, and there are a multitude of technical hurdles to overcome when designing it. However that hasn’t stopped them from creating a product that could very well have a place inside your collection.

    You can find Plussound’s Bluetooth cable lineup here, with cables running from $150 to $300. Today, I’ll be reviewing the Exo, the $150 model.

    Disclaimer: This unit was provided to me free of charge for review purposes. I am not affiliated with Plussound beyond this review. These words reflect my true, unaltered, opinion about the product. I’d like to thank Christian for helping me out.

    Preference and Bias: Before reading a review, it is worth mentioning that there is no way for a reviewer to objectively pass judgment on the enjoy-ability of a product: such a thing is inherently subjective. Therefore, I find it necessary for you to read and understand what I take a natural liking to and how that might affect my rating of a product.

    My ideal sound signature would be an extended sub-bass with a leveled, but textured, mid-bass. The mids should be slightly less pronounced than the treble, but still ahead of the bass. I prefer a more bright upper range.

    IEM Tests:

    The Exo was tested with four different IEMs:

    • Kinera H3 (Impedance: 48Ω, Sensitivity: 101 dB (at 1 kHz))
    • Audio-Genetic AG2 (Impedance: 30Ω, Sensitivity: 109 dB (at 1 kHz))
    • Heir Audio 4 Ai. S (Impedance: 17–20Ω Sensitivity: 101–102 dB (at 1 kHz))
    • Heir Audio HISO (Impedance: 18Ω Sensitivity: 108 dB (at 1 kHz))
    All music was served as MP3 @320Kbps or as FLAC via an HTC U11 running Android 7.1.1.

    Performance & Features
    To my knowledge, all of the Bluetooth modules sold by Plussound have identical feature-sets. The only real differentiation is the material/sleeving of the cables attached to them. The Bluetooth modules support:

    • Bluetooth 4.2
    • aptX Codec support
    • Directional microphone
    • Media-control
    • Smart-assistant support (Siri, Cortana, Google Now)
    I’ve tested and confirmed that all of the above features work as intended. I particularly appreciate how good the microphone is, as I’ve struggled to find a Bluetooth module that can transmit clear calls while I’m on my bike.

    Pairing was simple once my U11 detected the Exo, and I’ve had no stuttering or cutting out since then. This is a huge relief for me, as the module is so large that there would have been no excuse if connection reliability was poor. Range is good both indoors and out (though I could only maintain a stable connection at 33–35ft, not the 40ft Plussound claims), and battery-life is quite good. I regularly hit the 10-hour estimate Plussound puts on their website. Do bear in mind though, I used mostly efficient IEMs with this, and your mileage will vary in accordance with the headphones and earphones you use.

    In terms of sonic performance, I have no qualms what-so-ever. As per the technological limitations of Bluetooth, the Exo cannot compete with analog cables in terms of sound quality. That being said, there’s simply nothing wrong with the way the Exo sounds. Performance with all the IEMs I tested was superb, and I noticed no unusual distortion or sleepiness. While some of the smaller details get lost, that’s to be expected, and I’m not even remotely upset about it. The fact of the matter is, there is currently no widely-adopted wireless standard that has solved the shortcomings of Bluetooth audio compression.

    Packaging / Unboxing



    Packaging is simple, protective, and efficient. Not much to say here other than I appreciate how little waste there is.

    Construction Quality

    As per usual, Plussound’s engineering is quite good. I could find no manufacturing flaws nor design deficiencies. The stranded copper cable shines brilliantly through it’s clear plastic sleeve, and the cable feels strong and relatively durable. Stress relief is adequately protective and does not concern me at all, even when using the Exo in active situations.

    The Exo can be terminated in a variety of ways with essentially any connector you need. My particular Exo was of the 0.78mm 2-pin variety. See Plussound’s website for a complete and comprehensive list of their offerings.


    The cables are shaped to accommodate over-ear IEMs. I like this, and I wish that Plussound would take it one step further and offer memory-wire to help us keep everything in place. I also really like the connectors that Plussound used. There right and left sides are color-coded, which really helps orient me while switching between two IEMs.


    The Bluetooth module is enlarged to accommodate the battery and it’s various accompanying technologies. While this isn’t annoying or overbearing while simply sitting or walking around, it can become a nuisance while biking or moving at a brisk pace. I’m not sure if it’s possible to reduce the size/weight of the module, but if it were, any improvements would be welcome.

    That aside, I’d also like, as I mentioned earlier, some memory wire/ear-guides. As it stands, the cable stays on my ears fine, but I’d like some extra security for ease of mind.

    The Exo is quite the interesting beast. Combining the luxury of custom cables with the utility and convenience of Bluetooth, it’s not something too many other companies have attempted. While there is definitely room for improvement, I’d say the Exo has no major deal-breakers at its current price. So if you’re an audiophile looking to go wireless, but don’t want to give up your current detachable-cable IEMs, definitely give Plussound’s Bluetooth cables a try!
      hqssui and B9Scrambler like this.


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