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Astell&Kern AK UW100 MKII True Wireless Earphones

Astell&Kern AK UW100 MKII True Wireless Earphones

Next-level True Wireless Sound

The AK UW100, which realized Astell&Kern's philosophy of "delivering music that is authentic to the original sound" even in true wireless earphones, has attracted a lot of interest due to its unique design and best in class sound.

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Higher separation levels

AK UW100MKII are a completely wireless earphones with unrivaled 32-bit DAC technology, and the AMP and circuit technology of Astell&Kern enables separation of the digital parts and analog circuits of the wireless earphone. This new design allows for further reduced noise than the previous model, offering clearer sounds with higher separation levels. 

A New Design for Enhanced Perfection

The position of the BA driver has been moved towards the inside of the ear to better deliver the finer audio details more directly, and the acoustic chamber structure and mesh size have been re-designed multiple times in accordance with the new BA driver position to deliver the optimal sound output.

The new design took numerous attempts to minimize sound diffusion to provide a more delicate and dynamic performance and a richer high-frequency expression.

Best-in-class Passive Noise Isolation

AK UW100, the previous model, is equipped with highest-level PNI (Passive Noise Isolation),

and has been recognized as a true Hi-Fi TWS that fundamentally eliminates noise that may be caused by ANC and sound distortions, together with its outstanding noise-canceling performance.

The AK UW100MKII allows users to enjoy complete musical immersion with its excellent sound technology and highest-level PNI technology.

Continue the Joy of Music

We completely redesigned the power system to increase the playback time significantly, which is one of the important performance factors in TWS, while not compromising on the most important sound quality.

Now, you can enjoy the AK UW100MKII all day without worrying about recharging, with AK UW100MKII. Approximately 9.5hours of continuous playback, and up to 29 hours of total playback, never miss a beat with the AK UW100MKII.

Redesign earbud size

Through new internal design and current optimization, we were able to maintain the earbud size while dramatically reducing the cradle size and significantly increasing the playback time.


Multi-Point and Multi-Pairing Support

AK UW100MKII supports Multi-Pairing and Multi-Point functions. Pair your earbuds on multiple mobile devices at the same time. Not only can you easily switch connections to another mobile device, but you can also listen to songs played on your tablet PC while actively allowing phone notifications and calls from your smartphone.

*The Multi-Point function supports a connection of up to two devices.

Easy Configuration with Our Proprietary App

Install the exclusive app to use various functions and enjoy easy setup.

The AK TWS app is equipped with various newly developed user functions for the AK UW 100MKII.

Users now can conveniently control basic battery information, User EQ setup, touch-key arrangement, ambient stage control, etc.

Premium Bluetooth, Ideal for Hi-Fi Sound Quality

AK UW100MKII features powerful wireless performance enabled by Premium Tier QCC5141,

support for aptX™ Adaptive, Qualcomm's next-generation high-quality codec for wireless 24-bit sound quality and Bluetooth 5.2 support, for better connectivity than previous models.


Bluetooth Chipset



Knowles Balanced Armature

Digital-Analog Converter (DAC)


Bluetooth Ver.


Bluetooth Codec

AAC、SBC、AptX Adaptive®

Bluetooth Spec


Sound Pressure Level(SPL)

94dB (1m@1kHz)

Earbud Control

Capacitive Touch


Proximity Sensor


2-mic /per earbud

Playback Time

Up to 9.5hrs (Maximum 29hrs)

Control APP

Android and iOS version


C Type for charging
Cradle Supports Wireless Charging

Firmware Upgrade

OTA(Over The Air)


Charging Case:approx65g

Customer Reviews

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