A high-res audio headset with true wireless designSupports 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 audioSemi-in-ear design, no worry about allergy, comfortable and lightweight14.2mm composite diaphragm moving coil unit. The bass is rich and full, and the treble is clear and sharpallergyAlso provides dual-microphone with noise reduction, making the call clearer