FiiO at Audio46

FiiO UTWS5 True Wireless Bluetooth In-Ear Headphone Receiver (Open Box)

Product SKU: UTWS5 MMCX (OB)


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$139.99 Retail
$116.95 Save $23.04 (16% OFF)

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Product Details

↓ Details provided by FiiO

From Audio46: The 2-pin connector is FLAT. Please check if your IEM is flat or recessed before purchasing. For example, MoonDrop IEMs have a recessed 2-pin, meaning the connection will be loose and potentially unreliable.

UTWS5 True Wireless Bluetooth Amplifier

Qualcomm QCC5141 | 96kHz/24bit Hi-Res wireless | New-gen TWM technology | Independent DAC AK4332 | High-capacity charging case | Wireless charging

Why should you choose the UTWS5?

High-performance independent DAC
lower noise floor, higher SNR and output power

Flagship Bluetooth chip QCC5141
supports aptX voice

High-capacity charging case
worry less with up to 30 hours total battery life

Wireless charging
be free from charging cables, replenish power anytime, anywhere

Independent volume control
receiver volume is independent from transmitter volume, with 32 volume levels

Supports aptX adaptive
enjoy high sensitivity and low latency

Third-gen TWS mode
more reliable connection, support for more connections to multiple Bluetooth transmitters

Choice of connectors
MMCX/0.78mm 2-pin for greater compatibility

Unprecedented true wireless receiver with independent DAC

The UTWS5 is the first true wireless receiver utilizing an independent AK4332 DAC. Compared to the previous generation, the amplifier of the UTWS5 has a lower noise floor, higher signal-to-noise ratio, and higher output power by 40%!

Reaching new heights with Bluetooth Flagship Qualcomm QCC5141

One must continue to challenge one's self to continually set new bars of excellence. The Qualcomm QCC5141 in the UTWS5 brings two major upgrades compared to the previous generation QCC3020. Not only does the QCC5141 bring a significant leap in decoding high-resolution music, it also brings a significant improvement to calls with support for aptX Voice high-definition voice technology.

Third-gen TWS mode Lower latency and more reliability

Qualcomm's third-gen TWS Mirroring as utilized on the UTWS5 effectively reduces latency and instability for a better experience. Unlike TWS+, TWS Mirroring allows for seamless switching between being connected to the main and secondary ear units. This allows for a greater compatibility with various Bluetooth devices, all with lower latency and more reliable connections.

Bluetooth 5.2 96kHz/24bit Hi-Res audio support

Thanks to the Snapdragon sound suite of technologies, you can truly experience wireless high-resolution sound no matter what you are doing. Support for aptX adaptive allows you to listen to 96kHz/24-bit high-resolution audio all with lower latency. And aptX voice enables 32kHz super wideband voice calls for true high-definition calls over Bluetooth.

Truly unshackled Wireless charging

The charging case not only has an enormous 800mAh battery that can provide up to 30 hours of battery life, but is also capable of wireless charging - for the ultimate convenience of true freedom from cables.

8 hours Per charge
>30 hours Total battery life
3~4 times Total charge

*This product does not include a wireless charger.

High marks for more adjustable levels

Compared to the previous generation, the UTWS5 now features 32 levels of volume adjustment instead of 26 levels to let you more precisely set how loud you want your audio.

Give your earphones a more secure home

The included charging case not only features a sturdy aluminum construction to better protect your earphones, but also sports a large capacity to accommodate a greater variety of earphones attached to the UTWS5 - making it more convenient for charging, pairing, switching, and other operations.

No pressure from its light weight

Every last detail has been engineered to give you more comfort.

Tight-fit ear hook design
Reduces pressure against your ears while remaining secure.

Metal memory ear hooks
Soft, adjustable, comfortable, and non-slip for better wearing.

Supports detachable earphones
Choose between MMCX and 0.78mm 2-pin configurations

Skin-friendly nano coating
For a smooth, comfortable fit against your ears.

Take it wherever you go

Sports and fitness
tight-fit ear hook design allows for worry-free workouts with the UTWS5 securely in your ear

hands-free operation and call noise reduction for safer, clearer calls

Immersive gaming
enjoy gaming with high-quality sound in low latency, without the mess of wires

Daily commute
enjoy music while keeping up with important signals around you

Every touch carefully designed Ultra-sensitive, large buttons

The UTWS5 is not a case of form over function. The attractive large tactile button not only looks and feels better than ordinary buttons, but has also been engineered for improved responsiveness and reduced false touches. With simple taps, you can quickly access the controls you want.

With its own invisible raincoat IPX4 water resistance

With an IPX4 rating, no need to worry about the UTWS5 being damaged by water or sweat as you go about your life.

*IPX4 rated as determined by passing rigorous testing in Fiio Labs.

Remarkably convenient apps

Through either the Fiio Control or Fiio Music apps, you can adjust channel balance and other audio options. Continued firmware updates pushed through the app, as well as updates to the app itself will ensure a stable user experience for years to come.

General specifications

Model Name UTWS5 Hardware solution DAC: AK4332 Bluetooth:QCC5141
Color Black Volume Control Button control
Weight 122g (Includes ear hooks) Channel balance L12~R12(0.5dB per level)
Charging Indicator The white light on the earhook is always on and goes out when fully charged. FiiO Control Yes
Bluetooth(5.2) AAC/SBC/aptX/atpX adaptive Firmware upgrade The Bluetooth version can be upgraded via OTA.
Power-saving shutdown Automatic shutdown, and the time can be set in FiiO Music. Low Battery Warning Yes
Sampling Rate Supported Up to 96kHz-24bit Recommended Headphone Impedance 16~100 Ω
Buttons and ports
Buttons Physical buttons Headphone output ports MMCX/0.78mm Pins
Power parameters
Power Input DC 5V 1A or more Battery Capacity Ear hooks:60mAh
Charging case:800mAh
Charge Time Ear hooks≤1.5h
Charging case≤2h
Battery Life

>8h (AAC)

The charging case can charge the earhook: 4 times
Audio parameters
Earphone output performance parameters (MMCX)
Output power 1 ≥54mW(16Ω / THD+N<1%) Output Impedance <0.4Ω(32Ω)
Output power 2 ≥33mW(32Ω /THD+N<1%) Channel Separation ≥86dB (1 kHz/32Ω)
Noise floor <2μV(dbA) THD+N <0.002% (1 kHz/32Ω/dbA)
Frequency response 10Hz~41kHz (-3dB) SNR ≥109dB (dbA)
Peak Output Voltage >2.9Vp-p




Bluetooth chip

QCC3020 QCC3020 QCC5141

Bluetooth version

BT5.0 BT5.0 BT5.2


TWS, TWS+ TWS, TWS+ TWS, Qualcomm TrueWireless™ Mirroring
Bluetooth formats SBC, aptX, AAC SBC, aptX, AAC SBC, aptX, AAC, aptX Adaptive
Amplifier chip / TPA6140A2 AK4332
Noise cancelling Single microphone Dual mic DSP noise cancelling for calls

Dual mic DSP noise cancelling for calls

Noise floor 25uV 8uV 4uV
Output power @32Ω ≥5mW ≥25mW ≥33mW
Output power @16Ω ≥14mW ≥38mW ≥53mW
Output impedance / About 0.7Ω About 0.5Ω
SNR 88dBr"A" 100dBr"A" 109dBr"A"
Crosstalk 80dB 94dB 94dB

Battery life

8 hours

TWS+ mode, single charge: 7 hours

Single charge: 5.5 hours

Total battery life: 30 hours

Charging case allows for 4-5 charges

Single charge: 8hours

Total battery life: 30 hours

Charging case allows for 3-4 charges

Ear hook battery capacity

70mAh 60mAh 60mAh
Standby time 180h 200h 200h
Charging case connector / Type-C Type-C
Status indicator /

White light

White light

Earphone connectors MMCX/0.782-pin MMCX/0.782-pin MMCX/0.782-pin

water resistance ability

Independent volume control / Independent with 26 steps Independent with 32 steps

Voice prompt

/ English/Mandarin Chinese English/Mandarin Chinese

App control

/ Battery life display, EQ, volume adjustment, channel balance adjustment, OTA updates Battery life display, volume adjustment, channel balance adjustment, OTA updates

Bluetooth pairing IDs

When pairing, both the left and right Bluetooth ear units will be displayed When pairing, both the left and right Bluetooth ear units will be displayed When pairing, either the left or right ear units will be displayed

Dimensions (height*width)

/ 93.5*71.1*34.6mm 93.5*71.1*34.6mm

Single ear hook unit weight

About 6.5g About 8g About 8g

Total weight (ear hooks + charging case)

/ 125.5g 125.5g

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