Zte Z837VL User Manual page 122

Number Function
1
Return to the music library.
2
Album artwork (if available).
3
Check the track information.
4
Turn on or off shuffle.
Playback control: Skip songs or pause and resume playback.
5
Drag the progress bar to jump to any part of the track.
Toggle repeat mode: no repeat, repeat the current track, or
6
repeat the current playlist.
7
Add the track to the Favorites playlist.
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