MP3 player menu
When playback is stopped, press the MENU button to display the menu.
Delete single track
1.Press up button ▲ or down button ▼ to select the single track choice to delete, then press the confirm button 
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2.Press up button ▲ or down button ▼ to confirm or cancel, press the confirm button 
to either delete single track or cancel deletion (protected files cannot be deleted).
Protect single track
1.Press up button ▲ or down button ▼ to select the single track choice to protect, then press the confirm button 
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2.Press up button ▲ or down button ▼ to confirm or cancel, press the confirm button 
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