The Astell&Kern AK70 portable music player supports aptX™ HD for high-quality wireless music streaming.
aptX HD is designed to deliver 24-bit wireless HD audio wirelessly over Bluetooth
aptX HD has been engineered to improve the signal-to-noise ratio, resulting in lower background noise
With lower Total Harmonic Distortion (THD) and no audio artifacts you can enjoy your music with hardly any interference using Qualcomm aptX HD