Dedicated portable Bluetooth headphone amplifier Advanced Bluetooth 5.0 with high-resolution wireless audio support Perfectly pairs with M0 player for high-quality sound and powerful output Replaces computer sound cards to serve as high-quality USB DAC LED indicator displays currently used codec Multifunctional wheel for total control over playback and calls Precise volume control with 64 steps Type-C USB port supporting driver-free USB DAC Built-in microphone for phone calls and voice assistant Classic aluminum frame with glass panels Thin and sleek design with included clip case Up to 11 hours of battery life and 200 hours standby