Sylvania SMPS2018 - Manual (Page 15)

Buttons Operation
13
General
To Press
Turn On/Off
Scroll through lists
Select option
Return to Main Menu Hold the Play/Pause button
Hold the MODE button
Previous / Next buttons
MODE button
Music
Have the player locked / unlocked Hold the REC button
Play/Pause songs
Jump to next song
Fast forward
Move back to previous song
Fast backward
Volume up
Volume down
A-B repeat
Disable A-B repeat
Hold the Next button
Hold the Previous button
Play/Pause button
Next button
Previous button
Vol+ button
Vol- button
REC button
REC button
Have the LED light on LIGHT button
Have the player locked / unlocked:
If you want to have your player locked while enjoying music,
you can hold the REC button long, then all operations on buttons will be invalid.
And you can unlock your player by holding it long again.