Specification.
Bluetooth Version: V5.3
Profile Support: HSP,HFP,A2DP,AVRCP
Stand-by Time: 300h
Talk Time: 7h
Music Play time: 6h
Charging Time: 1h
Charging Voltage: DC 5V
Frequency Range: 2.402G-2.480G
Ambient Temperature: -15/+45°C
Transmission Distance: 10m
Earbuds Battery Capacity: 450mAh / 3.7v
Driver Specification
Driver Unit: 13 mm
Sensitivity: 100dB+3dB
Impedance: 16 ohms
Frequency Response: 20-20000Hz