Awei A886BL Air Conduction Sport Wireless Headset

Bluetooth version: 5.2 (Bluetrum 5616B) Supported protocols: Hands Free 1.6/ Headset 1.1/ A2DP 1.2/ AVRCP 1.5 Channel system: Stereo Talk time: 7H Play time: 7H Charging time: 1.5H Battery capacity: 240mAh Best call distance: <1M Maximum transmission distance: =8-10M Voice prompt: supported Sensitivity: 103±3dB Horn diameter: 08*10mm Impedance: 18±15% Microphone parameters: Sensitive: 39±5dB Impedance: 200O Operating frequency of Bluetooth: 2.402GHz~2.480GHz