AK UW100MKII pair front over white background
AK UW100MKII pair 3 quarter left and right over white background
AK UW100MKII pair rear over white background
AK UW100MKII retail package 3 quarter over white background
AK UW100MKII pair 3 quarter front left and right over white background
AK UW100MKII in open cradle front over white background
AK UW100MKII with open cradle front 3 quarter over white background
AK UW100MKII closed cradle front over white background
AK UW100MKII pair with one earphone in open cradle front 3 quarter over white background

Astell&Kern AK UW100MKII | True Wireless Hi-Fi Earphones

Regular price$299.00


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Experience Unprecedented, Next-level, Wireless Hi-Fi Sound Quality With Astell&Kern's AK UW100MKII TWS

  • High performance AKM 32bit DAC
  • Best-in-class passive noise isolation
  • Accurate Knowles BA driver
  • Premium Qualcomm 5141 BT chip with aptX™ adaptive codec
  • Ambient Mode with 4 steps
  • 29 hr playback time, wireless charge and fast charge capable

Astell&Kern UW100MKII hero banner with specification list

Unprecedented Wireless Hi-Fi Quality: The 2nd Story

The AK UW100 realized A&K's philosophy of "delivering music authentic to the original sound," even in TWS earphones, and attracted much interest due to its unique design and best-in-class sound.

Based on that positive reception, A&K continued R&D to create a next-gen TWS, and as a result, is proud to present the AK UW100MKII, a new premium TWS that conveniently delivers the ultimate sound anywhere, at any time.

AK UW100MKII comes with a high-resolution 32-bit DAC (not easily mounted on a TWS) and a full range BA driver that offers precision sound, delivering outstanding Hi-Fi audio even in a wireless setup. In addition, it features best-in-class passive noise isolation, aptX™ Adaptive, ergonomic design, and latest high-resolution codecs, offering the most advanced TWS audio to date.

Astell&Kern UW100MKII hero banner highlighting features

New Design for Enhanced Perfection

Astell&Kern improved on the highly regarded AK UW100 for a more perfect solution. The position of the BA driver has been moved toward the inside of the ear to better deliver audio details more directly, and the acoustic chamber structure and mesh size have been redesigned in accordance with the new BA position to deliver optimal sound output. This new design took numerous attempts to minimize sound diffusion to provide a more delicate and dynamic performance and richer high-frequency expression.

AK UW100MKII are completely wireless earphones with unrivaled 32-bit DAC technology. The AMP and circuit technology of A&K enables separation of digital parts and analog circuits of the earphone. This new design further reduces noise over the previous model, offering clearer sounds with higher separation.

AK UW100MKII explosion with internal component descriptions

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.

Full Touch Control and Voice Assistance

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.

Tap the left earbud 3 times to activate your smartphone's Voice Assistant function. Control music playback, make phone calls, and other powerful smartphone functions with your voice.

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

Clear Call Quality

The AK UW100MKII comes with Qualcomm's cVc Generation 8.0 (Clear Voice Capture) which creates enhanced call solutions for clearer and more stable call quality. Generation 8.0 cVc keeps background noise in check and delivers clear voice audio at all times. Experience the ultimate Hi-Fi sound of AK UW100MKII and even more powerful, crystal clear call quality!

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Easy Config AK 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 UW100MKII. Users now can conveniently control basic battery information, user EQ setup, touch-key arrangement, ambient stage control, etc.

Astell&Kern TWS app screenshots


  • Bluetooth: Qualcomm 5141 | v5.2 | SBC, AAC, aptX™ Adaptive | HFP, A2DP, AVRCP
  • Driver: Knowles Balanced Armature
  • DAC: AKM AK4332ECB
  • SPL: 94dB (1m@1kHz)
  • Earbud Control: Capacitive Touch
  • Sensor: Proximity-based
  • Mic: 2-mic per earbud
  • Playback: Up to 9.5hrs (Max 29hrs)
  • USB-C for charging
  • Cradle supports Wireless charging
  • Android and iOS Control Apps
  • Firmware Upgrade via OTA (Over The Air)
  • Weight: Earbuds: 7g | Charging Case: 65g
  • Dimensions: Earbud: 22.2 x 21.2 x 22.8mm | Cradle: 72 x 32 x 34mm
  • Astell&Kern 1 Year Warranty

Astell&Kern UW100MKII earbuds, case, and ear tips

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Customer Reviews

Based on 2 reviews
Flip Masterson

Wow the sound on these buds are amazing!! Big sound stage, crystal clear, great instrument separation, truly a very pleasant and comfortable listening experience!!! But that is what they are ,if you are someone looking for just great sounding buds, I highly recommend!! If you are looking for ANC with bells and whistles and sound is not the lead priority then these are not for you. For me Great 5 stars!!!

Joseph Lee
Clear, detailed sound

The Mk2s are clearly an improvement over the first UW100s. Detailed, crisp sound! I also think the passive noise cancellation is very good, as active noise cancellation can muffle or distort details in some other wireless headphones ive owned.

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