1.Bluetooth specification:V5.4

2.Bluetooth Profile:A2DP,AVRCP,HFP, HSP 

3.Charging voltage:5V-1A

5.Speaker specification:10mm*2

6.Microphone sensitivity：-38Db

7.Frequency response:20Hz~20kHz

8.lmpedance:32Ω

9.Battery capacity of the headset: 3.7V 30mAh

10.Battery capacity of the storage box:3.7V 230mAh

11.Transmission distance:>15M 

12.Play time:About 4-5 hour

13.Waterprof :IPX5

14.Charging time of headset:1 hour

15.Charging time of the Charging box: About 2 hour

16.charging interface：type-c