- .Bluetooth specification:V5.2
- .Bluetooth Profile:A2DP,AVRCP, HFP;HSP
- .Working voltage:3.1V~4.2V
- .Charging voltage:5V-1A
- .Battery capacity of the headset: 60MAH
- .Battery capacity of the storage box:2000MAH
- .Transmission distance:>10M
- .Call time:About 6h
- .Play time:About 6h
- .Waterprof :IPX7
- .Charging time of headset:1h
- .Charging time of the Charging box:2h
0 review for M31 TWS Bluetooth 5.2 Earbuds