Nextar MA750 - Manual (Page 42)

5.8.
5.8.3
2 EQ
Press rewind button or fast forward button in EQ setting menu to
select EQ and press play button  to confirm. Long press play button 
or press power/stop button to skip this setting. When playing music, the
change of EQ can be felt in the earphone. EQ of this player includes:
Normal, Rock, Jazz, Classical, Pop, Ska, Soft Music, Soft Rock, Dance,
Full Bass and Treble, Full Treble, Large Hall, Techno, Ultra Bass, Blues,
Club, Live, Party and Reggae.
Play mode
Press rewind button or fast forward button in play mode setting
menu to select play mode and press play button  to confirm. Long
press play button  or press power/stop button to skip this setting.
The play mode of this player includes: normal, repeat one, repeat all,
random and random & repeat. Random and random & repeat can only
be applied to music play.
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