User's Manual

2. Basic Operation:
Button
Function
Operation Instruction
MFB
Power On
In off state, long press the multi-function button for 2 seconds to
start up, and the startup prompt tone is "Power on".
Power Off
In on state, long press the multi-function button for 3 seconds to
shut down, and the power-off prompt tone is "Power off".
Enter into Pairing
Mode
Turn on the phone and Bluetooth, search "M103" Bluetooth device,
and click "M103" for pairing. After a few seconds, you hear a tone
indicating that pairing is successful. The LED turns to blue and
blinks slowly (the blue light blinks once for 10s).
Play / Pause
When playing music, press the MFB to pause / play music
Redial a call
Double press MFB to dial the last call.
Voice dialing
Long press 1 second MFB then release.
Audio switch
When talking, long press the multi-function button for 2 seconds to
switch between mobile phone and earphone.
Three-way calling
A. When an incoming call occurs during a call, press the multi-
function button to answer a new call and hang up the current
call.
B. Double-click the multi-function button to answer an incoming
call and reserve the current call.
C. Long press the multi-function button for 2 seconds to hold
the current call and reject the new call.
D. In a three-way call, double-click the multi-function key to
switch between the current phone and the reserved phone
Answer a call
Short press (when call coming)
Hang up a call
Short press ( during a call )
Reject a call
Long press 1 second (when call coming)
Volume +
Volume Up
During a call/music, short press the volume plus key to increase
the volume (press to the loudest and continue to press the
volume plus key, and the prompt sound "di" will appear)
Next Song
Music Status Long press volume plus key for 1 second to switch to
the next song.
Volume -
Volume Down
During a call/music, press the volume reduction button to reduce
the volume.
Previous Song
Music Status Long press the volume down key for 1 second to
switch to the previous song.
Mute
Microphone mute
To mute a call, press the mute button. To unmute a call, press the
mute button again.