2000mAh Large Battery Charging Good Sound Bluetooth Wireless Sports Earphone Hot TWS Earbuds

1. Bluetooth scheme:  JL V5.0

2.Imput:5V 1A

3.Output of charging box:5V 2.1A

4.Sensitivity:120±5dB

5. Frequency Response:20-20000Hz

6. Impedance:16Ω                          

7.Headphone battery 45 mA*2            

8. Battery Box:2000 mA

9.Playing Time:4H

10.Charging Time of Battery Box：about 4 hour

11.Charging Time of Earphone：about 1 hour