Astell&Kern AK UW100MKII True Wireless Earphones

Unprecedented Wireless Hi-Fi Sound Quality

: The Second Story

The AK UW100, which realised 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. Based on this positive reception, Astell&Kern continued research and development to create our generation TWS, and as a result, is proud to present the AK UW100MKII, a new premium TWS that conveniently delivers the ultimate sound anywhere and at any time.

AK UW100MKII comes with a High Resolution 32-bit DAC, which is difficult to mount on a TWS, and a full range Balanced Armature driver that offers precision sound, delivering outstanding Hi-Fi sound even in a wireless setup. In addition, with best-in-class PNI (Passive Noise Isolation) and aptX™ Adaptive, along with the ergonomic design and latest high-resolution codecs, it offers the most advanced True Wireless Sound to date.

We were able to further enhance the AK UW100MKII with a more advanced internal circuit design. The AK UW100MKII reduces noise through digital circuit separation, and the newly designed circuit structure ensures a more stable connection to the host compared to its previous model, AK UW100.

Additionally, the internal design was improved by adjusting the position of the BA driver and re-designing the acoustic chamber. With the optimisation of electric currents, the earbuds can be played for up to 9.5 hours continuously, and offer 29 hours of maximum playback, so you can enjoy Hi-Fi sound anytime, anywhere.

Advances for more complete wireless sound

Astell&Kern's long-standing, fundamental principle is the reproduction of sound as true to the original source as possible.

The AK UW100MKII, a true wireless earphone, based on our proprietary audio technology, provides uncompromising wireless Hi-Fi sound with no cables required.

A rarity for True Wireless Stereo (TWS*), the AK UW100MKII has a separate embedded high-performance 32-bit DAC as well as a Balanced Armature driver for accurately reproducing sound, allowing the delivery of precise, high-quality audio with no loss of detail.

aptX-Adaptive audio codec support for exceptional audio quality is the final flourish, ensuring the AK UW100MKII is ready for wireless Hi-Fi sound.

Combining all these features with ergonomic design and best-in-class Passive Noise Isolation (PNI), the AK UW100MKII takes your listening experience to a dimension where only you and the artist exist.

A New Design for Enhanced Perfection

The Best Choice for Pure Sound

– Enhanced musical immersion

Google Fast Pair

Make Pairing easier and faster.

The AK UW100MKII supports Google's Fast Pair Service, allowing for easier and faster connection with Android devices. Fast Pair Service utilises Bluetooth Low Energy technology to automatically recognise and pair devices.

By simply opening the cradle of the product near an Android device, it enters pairing mode, eliminating the hassle of opening Bluetooth settings and providing a simple and convenient way to pair the device.

Easy, Full-Touch Control

Precise full-touch control is enabled so you can simply tap to switch between functions:

Play Music, answer calls, adjust the ambient level and volume, and more.

Voice Assistant Support

Tap the left earbud three times to activate your smartphone's Voice Assistant function. Control music playback, make phone calls and more powerful smartphone functions with your voice.

*The supported Voice Assistant function may vary depending on the specifications of each mobile device manufacturer.

General Specifications

Model: AK UW100MKII

BT Chipset: Qualcomm 5141

Driver Unit: Knowles Balanced Armature

DAC: AKM AK4332ECB

BT Version: 5.2

BT Codec: SBC, AAC, aptX™ Adaptive

BT Profile: HFP, A2DP, AVRCP

Sound Pressure Level(SPL): 94dB (1m@1kHz)

Earbud Control: Capacitive Touch

Sensor: Proximity Sensor

Microphone: 2-mic / per earbud

Playback Time: Up to 9.5hrs (Maximum 29hrs)

USB: C Type for charging

Cradle: Supports Wireless Charging

Control APP: Android and iOS version

Firmware Upgrade: OTA(Over The Air)

Weight: Earbuds : approx. 7g / Charging Case : approx. 65g

Dimension: Earbud : 22.2 x 21.2 x 22.8(mm) / Cradle : 72 x 32 x 34(mm)