The most important function of the Padbay app is the music control. You can use your Play/Pause button ( for most vehicle designs this will be the forward and backwards button) to control the current played songs. Of course you can use those buttons to change to the next or previous song. Via the slider you can regulate the volume or, if you have changed in the settings the functions, you can use the slider to go for or back within the song and you can see the song progress. To choose another song, different album or you would like to listen to another interpret, simply touch the cover and enter your music files.