Update Playlist: When the MP3 files in the phone's memory are changed, this option will update the playlist
Player Mode: You can select play modes such as one song play, one song repeat, and play in order, continuous play, and quick play
Record collection display interface:
Shown in the figure are the pictures of the MP3 collection. you can drag to the left and right so different collections are shown.
key: press this key to play the MP3 file. At the same time, the icon will change into a 
, clicking again will pause the playback of the MP3.
key: press this key to exit the record collection, and return to the previous interface. If there is an MP3 playing at the time, it will continue to play in background mode.
Clicking the picture in the middle of the screen, it will change to show the MP3 files in the collection as below:
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