User's Manual
using any other third party charger.
z When battery power is low, the red indicator LED will flash red once every 10
seconds and a “DUDU” sound will come up every one minute.
4. Turn on / off
Turn on: From o ff, pre ss and hol d “MFB” for around 4 seconds, un til the LED
indicator shows blue.
Turn off: From on , pre ss and hol d “ MFB” for arou nd 4 se conds un til the LED
indicator shows red.
5. Working with mobile phone (Tutorial online)2
It is important to pair the headset with your Bluetooth enabled mobile phone for
first time use.
5.1 Pairing procedure:
A. Ensure the headset is off.
B. Press and hold the MFB button (about 7-10 seconds) until the LED blinks