Model:W39
Bluetooth Chip: AB5656C
Bluetooth Version:V5.3
Transmission Distance:10m
Drive Unit:8mm
Working Frequency:2.402GHz-2.480GHz
Impedance:32Ω± 15%
Sensitivity:102db±3
Battery Capacity:30mAh
Charging Box Capacity:500mAh
Charging Box Capacity Time:2H
Music Time:About 4H
Talk Time:About 3H
Standby Time:About 42H
Input voltage: Type C;DC 5V
Support Bluetooth protocol: HFP,A2DP,AVRCP,SPP