AGPtek M28 Guide Rapide page 4

Note: The player will power off automatically if inactive and no
applications operate on backstage for 2 minutes.
Hold button to lock screen, then all the buttons are useless
Screen Lock
except for screen lock button. Press any button to light up screen,
then hold button again to unlock screen, then you can use other
M
buttons.
M
Click button +/- on the left side to increase/decrease the volume.
Volumn Adjustment
Each time you press the button / , it will bring you to one of
Main interface
its 9 different functions, including
Music, FM radio, Folder View, Set,
Recordings, Pictures, EBook, Video and Last Played(Now Playing)