A high-res audio headset with true wireless design Supports LHDC Bluetooth decoding. Comparing to the Bluetooth SBC audio format, LHDC allows more than 3 times the data transmitted and also provides the most realistic and high definition wireless audio ● Semi-in-ear design, no worry about allergy, comfortable and lightweight ● 14.2mm composite diaphragm moving coil unit. The bass is rich and full, and the treble is clear and sharpallergy ● Also provides dual-microphone with noise reduction, making the call clearer ● Supports direct voice wake up of the XiaoAI smart assistant