Samsung Yepp YP-NEU - Manual (Page 16)

Using the Equalizer Digital Sound -
15
Equalizer
button
1 Each time the EQ/REP button ( ) of your remote controller is
pressed, the equalizer modes will be changed in the order of
Classic, Classic, Jazz, Rock Jazz, Rock and Normal Normal
Normal mode is not indicated on the display.
Equalizer Function Equalizer Function