1. Bluetooth version: 5.0 version
2. Bluetooth distance: about 10-15m
3. Bluetooth protocol: A20P/AVRCP/HSP/HFP
4. Speaker type: bone conduction vibrator speaker
5. Life time: about 6-8h
6. Charging time: about 2h
7. Battery capacity: 150mAh
8. Charging port: USB
9. Waterproof rating: IPX5
10. Weight: about 25g

Features:
1. Bone conduction technology, sealed speaker, no sound leakage holes
2. Induction touch button, no pressure operation, to avoid ear screen discomfort
3. Fully enclosed cavity, suppress sound leakage, small vibration, small sound leakage, low power consumption, good sound
4. Delicate skin-friendly material, titanium alloy rear hanging line, solid and not easy to fall off
5. Dual microphone noise reduction technology, wireless HD calls
6. Detachable microphone