To charge t or disconnect L50 from PC, use the Safely Remove Device function on your computer
Main menu
Hold [M] button to enter main menu. Press [PRE] or [NEXT] to switch the modes.
Music
Select “Music” in the main menu
Press [M] button to confirm selection and then press PLAY/STOP [>II] button to play the song. While music playing, press [M] button to enter