Transform any earphones into true wireless ones

Connect any pair of earphones to the solid yet light UTWS1 to make them into a high-fidelity, true wireless set. Get high quality sound while literally being free of any wires!



True Wireless Bluetooth Module-UTWS1

*Pictures are for reference only, actual product may vary


MMCX connectors | FPC Bluetooth antenna | Intelligent DSP noise cancellation


Qualcomm QCC3020 | Bluetooth 5.0 | aptX/AAC/SBC Bluetooth codecs support

Giving your earphones a new voice

Clarity for both ears

QCC intelligent noise cancellation



An advanced DSP combined with high-sensitivity microphones in both the left and right units allow for crystal-clear calls even in noisy situations.


Clarity for both ears

QCC intelligent noise cancellation



An advanced DSP combined with high-sensitivity microphones in both the left and right units allow for crystal-clear calls even in noisy situations.


Detachable earhook design

Supporting extended MMCX/0.78mm 2-pin


The UTWS1 is available with either 0.78mm 2-pin or extended MMCX connectors (more reliable and easier to connect to more earphones compared to standard MMCX), allowing a greater variety of earphones to be given new life as true wireless buds.


*MMCX edition will be released first, 0.78mm 2-pin edition will be released in the future.

Apple iOS devices support the excellent-sounding AAC format, while Android devices also support the even higher quality, high-definition aptX format. Support for these formats allow the UTWS1 to give you truly high-fidelity music no matter where you go.

aptX/AAC/SBC Bluetooth format support

FiiO’s extensively experienced engineers have tuned the Qualcomm QCC3020 for maximum audio quality –the signal-to-noise ratio noise floor, and the output LRC circuit has been improved over the reference design, so you can enjoy superior sound quality whether listening to music or taking phone calls.



A pleasant surprise every time


No fear of sweat with waterproof nano coating

The waterproof nano coating protects the UTWS1 inside and out from sweat or water in general.


Don't stop the music with long battery life

Always have your music on you with great battery life.


hours standby time


hours of continuous music playback

The new Qualcomm QCC3020 chip supporting Bluetooth 5.0 is designed with ultra efficiency in mind, being able to transmit data at high speeds stably by effectively shielding from interference while using extremely low power. This reliable Bluetooth connection allows you to enjoy true wireless freedom no matter the situation – whether you are answering a call, listening to exercise, or doing an intense workout.



New QCC series chip 

supporting Bluetooth 5.0

To get the best possible performance in the UTWS1 housing, a custom FPC Bluetooth antenna is used. The custom FPC antenna allows for better signal reception than a traditional one, ensuring more stable calls and music.


Custom FPC Bluetooth antenna


Controls to make life pleasant

We paid special attention to the main singular button on the UTWS1 used to control many functions. With its aluminum alloy material, anodized and sandblasted for greater durability and done in a shiny finish, this tactile button will allow you to easily do the following.


Custom IEM-like comfort from titanium memory wire

The earhook memory wire made from high-strength titanium is not only extremely durable, but also fits exactly to the shape of your ear for comfortable all-day wear.   


In order to protect your UTWS1 and the earphones they are connected to, FiiO has included a specially-designed carrying case. Not only does this case protect your units, it also makes charging the UTWS1 convenient wherever you go by including a separate compartment to store the charging cable.


A case that does it all


Bluetooth chip: QCC3020

Bluetooth format support: SBC/AAC/aptX

Bluetooth version: 5.0

Bluetooth range: 10m

Battery life: 8 hours

Standby time: 180 hours

Charging time: approx. 1.5H

Output power: 5mW(32Ω)

Charging connector: micro-USB

Weight (single unit): 6.5g


One song, two listeners
Individual/Binaural listening modes

Individual listening mode is like using two separate Bluetooth headsets

Binaural mode for traditional and more immersive 2-channel sound

What's included


UTWS1*1、USB dual-head charging cable*1, Carrying case*1, Manual*1


Brand FiiO UTWS1 TRN BT20S
Bluetooth chip QCC3020 QCC3020
Bluetooth format SBC/AAC/aptX SBC/AAC/aptX
Bluetooth version 5.0 5.0
Ground noise Optimized output LRC network QCC3020 straight out with
obvious ground noise
Interface More reliable expanded MMCX Ordinary MMCX
Endurance 8 hours 8 hours
Button Metal highlight buttons Plastic buttons
Button functions Play/pause; Previous/next track;
The volume + / -
Play/pause; Previous/next track
Accessories Double-head charging cable/
storage bag
Double-head charging cable
Waterproof level IPX5 life waterproof IPX5 life waterproof

TWS+ gives even more freedom

Supports Qualcomm's TWS+ dual transmission technology
Dual direct connections for lower latency and better stability

Instead of connecting to one wireless earbud which itself is separately connected to the other earbud, TWS+ allows your smartphone to directly connect to each of the 2 wireless earbuds. Not only does this mean simpler pairing, it also means lower sound latency so your video and sound are more synchronized and a more stable connection. 
Note: TWS+ requires your smartphone's support, some phones are unsupported or may have compatibility issues