Awei Awei Headphone Bluetooth A100-BL

Bluetooth Specifications
 Bluetooth Version: V5.3
 Profile Support: A2DP/AVRCP/HFP/SPP
 Talk Time: 6 h(light on)-11h(light off)
 Music Play Time: 7 h(light on)-12h(light off)
 Charging Time: 2.5 h
 Charging Voltage: 5V
 Frequency Range: 2402MHz-2480MHz
 Ambient Temperature: -20/+65°C
 Transmission Distance: 10m
 Battery Capacity:400mAh
 Driver Specifications
 Driver Unit:40mm
 Sensitivity: 118dB ‡ 3dB
 Impedance: 320 $ 15%
 Frequency Response: 20-20000Hz