Awei AT7 Bluetooth Wireless Headphone- Black Color

Bluetooth version: 5.4 Channel system: stereo Battery capacity: 600mAh Charging time: 2.5h Play time ≈70h Call time ≈40h Horn diameter: 40 mm Horn impedance: 32Ω Horn sensitivity: 121±3 dB Best transmission distance: Maximum transmission distance: 10 m Bluetooth operating frequency: 2.402 GHz–2.480 GHz Wearing method: head-mounted Charging interface: Type-C