Bluetooth version: 5.4
Channel system: stereo
Battery capacity: 600mAh
Charging time 2.5h
Play time ≈70h
Call time ≈40h
Horn diameter: 40mm
Horn impedance: 32Ω
Horn sensitivity: 121±3dB
Best transmission distance: <1m
maximum transmission distance: 10m
bluetooth operating frequency: 2.402ghz~2.480ghz
wearing method: head-mounted
charging interface: type-c maximum="" transmission="" _distance3a_="" 10m="" bluetooth="" operating="" _frequency3a_="" _2.402ghz7e_2.480ghz="" wearing="" _method3a_="" head-mounted="" charging="" _interface3a_="" />