Astell&Kern AK UW100MKII Earbuds True Wireless Bluetooth 5.2 aptX Earphones

Next-level True Wireless Sound

AK UW100MKII

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. 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.

• High Performance AKM 32bit DAC
• Best in Class PNI (Passive Noise Isolation)
• Accurate Knowles BA Driver
• aptX™ adaptive for High Quality Wireless Audio
• Ambient Mode with 4 steps
• Premium Tier QCC5141 & Bluetooth 5.2
• Supports Multipoint
• Total 29hrs playback
• Wireless & Fast Charge

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 optimization 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.

A New Design for Enhanced Perfection

Astell&Kern has further improved on the highly regarded TWS design of the AK UW100 to provide an even more perfect solution. AK UW100MKII offers the ultimate Hi-Fi sound—the pinnacle of Astell&Kern's technology and expertise.

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.

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.

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.

In particular, through aptX™ Adaptive support, latency — the downside of Bluetooth audio — has been significantly improved. It also provides a feature that adjusts the bit rate according to the content or wireless environment, and supports 24 bit through a bit rate of up to 420 kbps.

In addition, Qualcomm True Wireless Stereo Plus* mode minimizes transmission delay by transmitting independent signals to each earbud. We hope you’ll enjoy the AK UW100MKII’s benefits of premium Bluetooth technology combined with next-gen high-quality wireless codecs.

* Qualcomm True Wireless Stereo Plus, This feature requires a smartphone that supports Qualcomm True Wireless Stereo Plus.

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 utilizes Bluetooth Low Energy technology to automatically recognize 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.