1. Material: ABS, electronic components
2. Functions: battery display, call function, NFC function, voice control, music support, multi-point connection
3. Bluetooth protocol: 5.0
4. Channel: stereo
5. Transmission distance: 10 meters
6. Headphone battery: 40mAh x 2
7. Charging box battery: 280mAh
8. HIFI sound effects, game/music dual mode
9. Automatic connection when opening the cover, touch control, more convenient to use
10. High resolution 10mm large moving coil, with graphene composite diaphragm, experience surround 3D sound effects
11. MSMS silicon microphone, clear call and high sensitivity