Wireless headphones Awei T71 white

Bluetooth scheme: JL, V5.4
Supported protocols: HFP, A2DP, HID, AVRCP, AVCTP, AVDTP
Battery capacity of earbuds: 28mAh*2 (No protection board but protection IC)
 battery: 200mAh (protection board)
Charging voltage: DC5V
Charging time: 1h
Play time: 5h
Talk time: 4h
Standby time: 300h
Best call distance<1m
Maximum transmission distance: 10m
Voice prompt: support
Impedance: 32Ω
Sensitivity: 112±3dB
Frequency response range: 2.402GHz to 2.480GHz
Horn: φ13mm
Multi-point connection: unsupported
Wearing method: in-ear
User manual: Chinese and English
Charging port: Type-C
Accessories: USB charging cable, user manual