True Wireless Stereo has long been a focus of our product development. For us TWS ultimately is a means of giving people the freedom to enjoy their music. The AK UW100 is the result of Astell&Kern's uncompromising dedication to authentically replicating the original sound even in the challenging wireless environment, as well as our laser focus on the essentials of audio transmission. Digital signals are inaudible, so the DAC converts them into audible analog signals. In the case of many generic TWS systems, the DAC is integrated with the BT chipset, meaning that the focus is on lower power consumption rather than better sound quality, and that they have inherent physical limits when it comes to improving sound quality. On the other hand, by combining the unique amplifier and audio circuit technology from A&K’s digital audio players with the AK4332, a 32-bit Hi-Fi DAC, the AK UW100 reproduces sound on a whole new level compared to the BT-chipset-integrated DAC.

The AK UW100 uses best-in-class Passive Noise Isolation (PNI) to immerse you completely in the music. ANC is not essential to achieve both reduced ambient noise and increased musical focus. When combined with the thoroughly tried-and-tested ergonomic design of the AK UW100, PNI is sufficient to reduce noise physically. Unlike generic ANC, which concentrates on cancelling low-frequency noise, PNI can efficiently cancel unwanted ambient noise in the mid and high ranges, as well as higher-pitched sounds. Notably, the AK UW100’s noise cancelling capability is comparable to that of ANC, even for low frequencies. Another significant feature is that sound quality is retained, since noise is attenuated by the structure of the earbuds rather than by software. Developed with the help of countless simulations, the AK UW100's best-in-class PNI capability allows you to escape annoying ambient noise and to immerse yourself in an experience where only you and the artist exist.

If you wish to hear ambient sounds, just tap the left earbud once to activate ambient mode. You can switch between the four ambient modes by tapping or using the app "AK TWS". Integrating a Voice Communication Package (VCP) from voice application specialist Alango, the AK UW100 enables quality voice calls. Based on special Acoustic Echo-Canceller and Noise-Suppressor technologies, the AK UW100 effectively reduces noise in a variety of settings and environments, ensuring call stability.

With AK UW100, there are no worries about continuous playback time, one of the key features of TWS systems. The earbuds alone stay running for a minimum of 6 hours and up to 24 hours, so you can enjoy music all day without worrying about power. Alongside the convenience of wireless charging, AK UW100 also supports fast charging, so you can charge for 10 minutes to play for an hour.