Bluetooth Specifications:
Bluetooth Version:5.0
Chipset:Aroha 1536U
Profile Support: HSP, HFP, A2DP and AVRCP profiles
Stand-by Time:80H
Talk Time:3h
Music Play Time: 2.5h
Charging Time: 1h
Charging Voltage:DC 5V
Frequency Range: 2400-2483.5MHZ
Ambient Temperature: -20/+60ºC
Transmission Distance:  10m
Earbuds Battery Capacity:50mAh
Charging Case Battery Capacity: 1800mAh
Driver Specification Driver Unit:6mm
Sensitivity:95dB ± 3dB
Impedance:22Ω ± 10%
Frequency Response:100-20000 Hz