1. The BT 5.1 + ER/BDR
2. The chip: jie 6976 d
3. The headset capacity of 30 ma belt protection board, charging tank capacity of 400 ma
4. Music playing time: 5-7hours, charging times :3 times
5..Speaker unit: φ 8mm 32 ω
6. Pause/play, volume up/down, up/down
7. Dual-ear call, automatic pairing after startup
8. Waterproof level: IPX5-6
9. The Hi - Fi sound, chip smart noise reduction,
10.TYPE C charging port, private patent
11.Color: black
