Bluetooth Key Description
1. Power key / telephone connection hanging / pause / play key
2. Volume up key / next track button
3. Volume down key / button on a
4. The microphone hole
5. USB charging port
Bluetooth basic parameters
Transmission distance: CLASS II
Operating range: 10 meters
Battery capacity: 180MAH
Frequency range: 20-20KHZ
Sensitivity: 95DB
Impedance: 32 ohms
Speaker size: 32MM
Charging time: 2H
Voice of continuous talk time: 4-6H
Bluetooth music playback time: 3-6H (70% volume state)
Bluetooth:
answer / end / reject / forwarding, call waiting, redial, mute, volume control, multi-point connection, music / suspense
Stop / play, down song switch, voice dialing.