User Manual

3、Pairing P.3
3.1.Initialize the R channel headset, L channel headset interconnection
3.1.1. Red is R channel, black is L channel.
3.1.2. Press R channel for 2 seconds to enter pairing mode, red and blue light
will alternately flash with beep sound.
3.1.3. Press L channel for 2 seconds to enter pairing mode, red and blue light
will alternately flash with beep sound.
3.1.4. Press R channel for 2 times and press L channel for 2 times,
waiting for interconnection, blue indicator light will flash slowly.
Turn ON
B l u e l i g h t
flash fast
Yes
Enter pairing
mode
Red and blue
Alternately
flash
Yes
TWS function
When both sides are turned on,
left and right channel will
connect by wireless
Pairing
Search Bluetooth devices on your
phone, click’EXTW37’to pair
Blue light
flash slowly
Yes
Play/Pause
Blue light
flash slowly
Answer calls
End calls
L o w p o w e r
warning
Warning when low power
Red light
flash fast
Yes
Charge
Micro USB DC5V
Red light on
Disconnected
1.Close phone Bluetooth.
2.Cancel pairing on the
Bluetooth device list.
Flash fast
Yes
Turn OFF
No Indicator
Yes
When calls coming, press to
answer
press  button for 2 seconds
to enter
Press to play，repress to
pause(both side work)
Single press  button both
Left and right, headphone get
paired automatically
1.Press for 3s to turn off；
2.Turn off automatically after
10 minutes no connection.
Press to end calls