AGPtek U3 Bedienungsanleitung Seite 6

Voice
While there is a Voice icon on the main menu, click the button to
access to its function. Select by / and click button M to access to its
submenu.
While the music is paused, click button M  Home/Local folder/Delete
file/Delete all/Exit.
Home/Local
While the music is playing, click button M
folder/Repeat/Equalizer/Replay mode/Exit. Choose Exit or click R/V
button to return.
While there is a Radio icon on the main menu, click the button to access
to its function. Select by / button to select radio stations and press
to confirm. Click button M to access to its submenu.
Save or delete a radio station:
To save a station:
1. Once the station is found, Press M to access to its submenu;