Product specifications:
1. Bluetooth version: V5.0+EDR.
2. Transmission distance: 10m.
3. Charging compartment battery capacity: 300mAh.
4. Headphone battery capacity: 25mAh.
5. Charging voltage: DC 5V.
6. Speaker: 16 ohms.
7. Frequency response: 100Hz-20KHz.
8. Output power: 10mW.
9. Signal to noise ratio: greater than or equal to 90dB.
10. Working voltage: 3.7V.
11. Distortion: 1%.
12. Talk time: about 5 hours.
13. Music playback: about 5 hours.
14. Standby time: greater than or equal to 30 hours.
15. Charging time: about 2 hours.
16. Weight (including charging compartment): 48g.
17. Size: 78x35x36mm.