1. Bluetooth version: Bluetooth v5.0
2. Transmission distance: 10 meters.
3. Battery charge: 400mAh / per ear: 35mAh
4. Play time: Port 4-5 hours
5. Headphone function: adjust volume switch songs answer incoming calls refuse to answer calls hang up Bluetooth playback hands-free call phones playback Bluetooth reconnection voice request Power display magnetic charging
6. Horn: 10 mm angled
7. Sensitivity: 108 ± 5dB
8. Impedance: 32
9. Frequency response: 20-20000 Hz
10. Rated power: 15MW x 2
11. Support protocol: HSP / HFP / A2DP / AVRCP