B39 headset bluetooth
bluetooth version : 5.0 version
Driver size :40mm
Impedance : about 32 ohms
sensitivity :-58db +-3db
Frequency response:
working distance :10m
battery capacity :400mah
charging port :usb
power :max 45mw
bluetooth version : 5.0 version
Driver size :40mm
Impedance : about 32 ohms
sensitivity :-58db +-3db
Frequency response:
working distance :10m
battery capacity :400mah
charging port :usb
power :max 45mw