Soundbar: How to operate the buttons that are displayed on the TV during USB music playback

Operate the buttons that are displayed on the TV by using the following buttons of the unit's remote controller:
Select the following buttons on the screen by pressing the arrows, then pressing enter on your remote control.

The settings that can be operated during USB music playback are play, pause, previous, next, shuffle play and repeat play.

Repeatedly pressing the enter button of the remote control switches the repeat mode.