1. Bluetooth version: 5.2
2. Support protocol: a2dp/hfp/spp/hid/pbap
3. Transmission range: about 15m
4. Battery capacity: 230mAh
5. Charging time: about 1h
6. Talk time: about 10h
7. Music playing time: about 10-15h
8. Speaker size: 13mm
9. Frequency: 20hz-20,000hz
10. Impedance: 16 ohms
11. Sensitivity: 103dB
12. Charging input: 5V 1A
13. Charging interface: USB
14. Working voltage: 3.7V
15. Material: ABS
Features:
1. Multiple diaphragms, large moving coil unit
2. Intelligent one-key operation, easy to use
3. HD calls, intelligently filter noise
4. Comfortable and stable to wear
5. Intelligent power display design