1. Charging voltage: Micro USB 5V

2. Working current: 25-30mA 

3. Bluetooth A2DP Working range: 10m 

4. Output power: 2X20mW

5. Frequency range: 2.401-2.480GHz 

6. Distortion factor: ≤1% 

7. Frequency response: 20Hz-20KHz 

8. Working Time: Music state 6-8 hours (The Volume will affect the time)

9. SNR: S/N≥95 

10. Charging Time: 2h-3h 

11. Talk time: 8-15 hours, play time: 6-10 hours

12. Music Playing Time: up to 10 hours

13. Sensitivity: 80dB

14. Impedance: 32 ohms

15. peaker Power: 2 x 18mW

16. Color: Black White Blue Red pink