Headset wireless bluetooth headset

Transmission distance: less than or equal to 10m
Battery capacity: 300mAh
Charging voltage: DC5V
Speaker diameter: φ40mm
Impedance: 32Ω
Working time: playing music 4-6h, talk time 8-10h
Bluetooth version: 4.0
Microphone: Outside
Rated power: 100mw
Working voltage: DC3.7V
Frequency range: 20-20KHz
Headphone instruction
Turn on: Long press the key for 3 seconds until the red and blue lights flash alternately, then let go
Shutdown: Press and hold the key for 3 seconds until the red light flashes, then let go
Pairing: blue light flashes slowly
Answer the call: press the key to hang up
Adjust the volume: long press "+" to increase the volume, long press "-" to decrease the volume
Previous/Next Song: Quickly press "◥"/"◣"