Awei AT6 Wireless Headphones Bluetooth 5.3 Earphones .

Bluetooth version: V5.3 AC6955F Bluetooth protocol: Channel system: stereo sound Battery capacity: 300mAh Charging time: 1.5h Play time: ≈12.5h Call time ≈ 10.5h Horn diameter: 40mm Horn impedance: 32Ω Horn sensitivity: 113±3dB Best transmission distance: <1m Maximum transmission distance: 10m Bluetooth operating frequency: 2.402GHz~2.480GHz Wearing method: Headset Charging interface: Type-C Size: 20*17*8cm User manual: Chinese and English