Basic operation
Boot
Long press multifunction key 3S to blue light, blue lamp flicker 3
times, then achieve boot function (vibration once), red and blue
light alternate flicker, realize automatic enter bluetooth pair
pattern
To turn it off
Long press the multi-function key 3S, shutdown (vibration once),
red light flashing 3 times
Pairing
①
When the power is turned off, the long press is a 3S, the blue
light is switched to the red light and the blue light is flashing
into the matching mode, the red and blue light is flashing
②
Press MFB button for 6 seconds to enter the matching mode
when the machine is off. (do not have the back function in the
matching mode)
Connection
The headset is in pairing mode, the blue light flashes in 10
seconds, turns on the bluetooth on the phone, searches for the
corresponding bluetooth pairing name (BT - 551), and clicks the
connection
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