The HiBy WU1 is a wireless Bluetooth earphone pendant, with astonishing power in its tiny body.
21g non-weight | Independent AK4331 DAC | Qualcomm QCC5125 chipset | UAT | LDAC | Dedicated app for device control | 2pin and MMCX versions available | Hi-Res & Hi-Res Wireless | CVC voice call noise reduction
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Light and sound
21g non-weight | Independent AK4331 DAC | Qualcomm QCC5125 chipset | UAT | LDAC | Dedicated app for device control | 2pin and MMCX versions available | Hi-Res & Hi-Res Wireless | CVC voice call noise reduction



21g non-weight
21g non-weight of full unit lets you wear it all day every day! Whether sporting, going on the road or even sleeping, you can forget you’re wearing it and immerse yourself in the music!

Hardware specification
Utilizing the AK4331 as an independent DAC chip, its high performance paired with HiBy's experience in audio design yield a well rounded, musical output!

Qualcomm QCC5125 Bluetooth chipset
Qualcomm’s flagship chipset, supporting Bluetooth 5 for a more stable, reliable wireless connection, granting your HiFi headphones HiFi wireless status in a flash.

Black-ops Bluetooth tech
With our own in-house developed UAT Bluetooth codec, smash the Bluetooth quality ceiling!
UAT (Ultra Audio Transmission) is HiBy’s in-house developed all-new Bluetooth audio transmission codec. Supporting an industry-highest 192kHz transmission sample rate and up to 1.2Mbps Bluetooth bandwidth, this also can optimize its transmission characteristics according to different music genres, for the highest of audio fidelity from wireless!

Enjoy Hi-Fi Bluetooth
With an LDAC audio connection, enjoy 3 times the audio transmission rate of AAC or SBC. UAT/LDAC/aptX/aptX HD/SBC/AAC. Supporting all Hi-res Bluetooth formats.

Hi-Res & Hi-Res certified
Doubly Hi-Res!

Control via dedicated smartphone app
HiByBlue app remote control, check on sample rate, Bluetooth codec, battery level, adjust EQ and update firmware etc.

Standard 2-pin or MMCX ports
Comes in two versions adapting to the two most popular of HiFi earphone connections.

Clear voice calls with noise reduction
Onboard microphone with Clear Voice Capture voice call noise reduction for you to be heard loud and clear.

Skin-friendly material with fine texture
The skin-friendly and sweat-proof neckband with only 21g lets you forget you're wearing it.

Physical button functions

Highly durable
210mAh battery good for 13 hours! (playing via SBC codec continuously)

What’s in the box
WU1*1
Micro USB-C cable*1
User manual*1
Certificate*1
Warranty card*1
Specifications
Model | HiBy WU1 |
---|---|
Bluetooth chipset | QCC5125 |
DAC | AK4331 |
Bluetooth specification | Bluetooth 5.0, supports UAT/LDAC/aptX/aptX HD/SBC/AAC |
Interface | Physical buttons and verbal feedback via connected earphones |
Indicator lights | RGB LED |
Microphone | Included |
Headphone connection | 2pin & mmcx |
Battery capacity | 210mAh |
Play time | 13 hours (playing via SBC codec continuously) |
Weight | approx. 21g |
Audio specifications
Output voltage (32Ω loaded) | 1Vrms |
---|---|
Output power (32Ω loaded) | 31mW+31mW |
Frequency response (±3db)(using UAT codec) | 20Hz-90kHz |
Noise floor (A-weighted) | 3.6μV |
THD+N (A-weighted) | 0.0009% |
Status indications
State | Notification voice | Indicator light |
---|---|---|
Power on | Power on | / |
Power off | Power off | / |
Pairing | Pairing | / |
Pairing success | Pairing success | / |
Pairing fail | Pairing fail | / |
Connected | Connected | / |
Disconnected | Disconnected | / |
Battery low | Battery low | Sounds at under 3.66V |
Power off | Power off | at 3.56V |
Light and sound
21g non-weight | Independent AK4331 DAC | Qualcomm QCC5125 chipset | UAT | LDAC | Dedicated app for device control | 2pin and MMCX versions available | Hi-Res & Hi-Res Wireless | CVC voice call noise reduction



21g non-weight
21g non-weight of full unit lets you wear it all day every day! Whether sporting, going on the road or even sleeping, you can forget you’re wearing it and immerse yourself in the music!
Hardware specification

UAT - The Ultimate In Bluetooth HiFi
Utilizing the AK4331 as an independent DAC chip, its high performance paired with HiBy's experience in audio design yield a well rounded, musical output!


Qualcomm QCC5125 Bluetooth chipset
Qualcomm’s flagship chipset, supporting Bluetooth 5 for a more stable, reliable wireless connection, granting your HiFi headphones HiFi wireless status in a flash.
Black-ops Bluetooth tech

UAT - The Ultimate In Bluetooth HiFi
With our own in-house developed UAT Bluetooth codec, smash the Bluetooth quality ceiling!
UAT (Ultra Audio Transmission) is HiBy’s in-house developed all-new Bluetooth audio transmission codec. Supporting an industry-highest 192kHz transmission sample rate and up to 1.2Mbps Bluetooth bandwidth, this also can optimize its transmission characteristics according to different music genres, for the highest of audio fidelity from wireless!


Enjoy Hi-Fi Bluetooth
With an LDAC audio connection, enjoy 3 times the audio transmission rate of AAC or SBC. UAT/LDAC/aptX/aptX HD/SBC/AAC. Supporting all Hi-res Bluetooth formats.
Hi-Res & Hi-Res certified

UAT - The Ultimate In Bluetooth HiFi
Doubly Hi-Res!


Control via dedicated smartphone app
HiByBlue app remote control, check on sample rate, Bluetooth codec, battery level, adjust EQ and update firmware etc.
Standard 2-pin or MMCX ports

UAT - The Ultimate In Bluetooth HiFi
Comes in two versions adapting to the two most popular of HiFi earphone connections.


Clear voice calls with noise reduction
Onboard microphone with Clear Voice Capture voice call noise reduction for you to be heard loud and clear.
Skin-friendly material with fine texture

UAT - The Ultimate In Bluetooth HiFi
The skin-friendly and sweat-proof neckband with only 21g lets you forget you're wearing it.


Physical button functions

UAT - The Ultimate In Bluetooth HiFi
Highly durable

UAT - The Ultimate In Bluetooth HiFi
210mAh battery good for 13 hours! (playing via SBC codec continuously)


What’s in the box

UAT - The Ultimate In Bluetooth HiFi
WU1*1
Micro USB-C cable*1
User manual*1
Certificate*1
Warranty card*1
Specifications
Model | HiBy WU1 |
---|---|
Bluetooth chipset | QCC5125 |
DAC | AK4331 |
Bluetooth specification | Bluetooth 5.0, supports UAT/LDAC/aptX/aptX HD/SBC/AAC |
Interface | Physical buttons and verbal feedback via connected earphones |
Indicator lights | RGB LED |
Microphone | Included |
Headphone connection | 2pin & mmcx |
Battery capacity | 210mAh |
Play time | 13 hours (playing via SBC codec continuously) |
Weight | approx. 21g |
Specifications
Bluetooth chipset | QCC 5121 |
---|---|
Driver complement | one dynamic and one balanced armature driver, total two drivers per earpiece |
Bluetooth standard | Bluetooth 5.0 |
Bluetooth codec | UAT/aptX/SBC/AAC |
Bluetooth coverage distance | 10m |
Operation | Touch, indicator light and voice feedback, HiBy Blue app control |
Status indicators | Blue and red lights |
Microphone | Included |
Battery capacity | WH3 = 45 mAh, Battery case = 400 mAh
|
Battery Life | 5-hour playtime after fully charged. With Battery case up to 24-hour playtime. |
Weight | 63g (including battery case) |
Audio specifications
Output voltage (32Ω loaded) | 1Vrms |
---|---|
Output power (32Ω loaded) | 31mW+31mW |
Frequency response (±3db)(using UAT codec) | 20Hz-90kHz |
Noise floor (A-weighted) | 3.6μV |
THD+N (A-weighted) | 0.0009% |
Status indications
State | Notification voice | Indicator light |
---|---|---|
Power on | Power on | / |
Power off | Power off | / |
Pairing | Pairing | / |
Pairing success | Pairing success | / |
Pairing fail | Pairing fail | / |
Connected | Connected | / |
Disconnected | Disconnected | / |
Battery low | Battery low | Sounds at under 3.66V |
Power off | Power off | at 3.56V |