Ruizu D08 - Lock Screen; Return; Volume Adjustment

4
If it still can’t work for you. Ask RUIZU Customer
Service for additional help (See Cover)
4.Lock Screen
Use the switch on the top to lock the screen. Repeat
to unlock.
Note: Lock Screen will make buttons not working. If
you accidentally locked your screen , just use the
switch to unlock.
5.Return
While on playing interface, touch the button to
exit.
6.Volume Adjustment
While on playing interface, touch / to adjust
sound volume.
Note: There’s a built-in speaker in RUIZU D05 MP3
Player, the speaker will turn on automatically when
no earphones are plugged in.