1. Double moving coils, four speakers, make the sound quality to a higher level 2. Bluetooth 5.1, smart touch, LED power display 3. TWS binaural mode, automatic matching and interconnection 4. IPX6 waterproof and sweat proof 5. Charging bay battery capacity: 390mAh, headset battery capacity: 45mAh 6. 9 hours talk time, 8 hours music playback time
