1. Bluetooth version: v5.2
2. Audio decoding: AAC/SBC
3. Support protocol: HSP / HFP / A2DP / AVRCP
4. Speaker sensitivity: 115dB
5. Microphone sensitivity: -42dB
6. FREQUENCY RANGE: 50HZ-10KHZ
7. Headphone battery capacity: 30mAh
8. Battery capacity of charging bay: 400mAh
9. Speaker impedance: 32 ohms
10. POWER COMMENTED: 3MW
11. Speaker: 13mm
12. Music time: about 6h
13. Talk time: about 4.5h
14. Standby time: about 120h (connected)
15. Input: DC 5V/1A