1) Power key (No. 3 as shown)
Push up to turn on, push down to turn off
2) Volume key (No. 2 as shown)
Short press "" key to turn volume up; Press and hold
the " " key to skip to next track,
Short press "volume -" key to turn volume down; Press and hold
the "volume - " key to skip to last track. (Note: While the red and
blue indicator flashing alternately, press and hold both of the
"" and "volume -" for 6s at the same time to reset
Bluetooth)
3) Telephone answer/end key (No. 4 as shown)
A While call comes, single press to answer call; long press to
re」ect call. While in the call, double press to hand call up
