Naxa NMV-151 - Manual (Page 13)

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15. Browse Lyric
In playing interface, press Camera key to enter music level setting mode,
press Camera key again change the interface to lyric mode. The location
where music information was displayed will show the lyric of the current song.
Hold Last and Next to view the lyric in a fast way.
4. My Picture
4.1 Main Menu
Select Picture in main application interface and press Play to enter. After
entering the application, it enters Now Playing interface; press Mode to return
to main application step by step or press and hold Mode it return to application
directly.