Basic parameters:

  Bluetooth 4.1+ EDR

Stereo Bluetooth headset， A2DP， AVRCP;

Receiver sensitivity - 9dBm + 92dbm TX output power

24-bit audio codec， - 98dB signal to noise ratio

Radius distance: 10 meters

Power supply: DC5V / 100mA-1A

Undefined

Instructions:

1. Boot: long press the boot button for 2-3 seconds， red and blue lights together， boot into the connected state
2. boot pair: long press the boot button 5-6 seconds， start with the first red and blue lights together， after the red and blue flash， into the pairing mode
3.VOL +: long press the volume + key 2 seconds， the volume level up， the maximum sound， there is a warning sound
4.VOL-: long press the volume - key 2 seconds， the volume level down， the minimum sound， there is a warning sound
5. Previous song: short press VOL +
6. The next song: short press VOL-
7. Answer the phone: When you call， press the key briefly
8. Phone refused to answer: When you call， press and hold the power button for 2 seconds
9. Rewind the last phone number: Standby double-click the power button
10. Charging: When charging red light， full of blue light