1.MUTE Control Key:Turning off/on the sound
2.Number Key:Selecting Songs
3.Folder Key:Searching in Folders
4.Repeat Selecting Key
5.USB Key:Transfering USB
6.CH - : Previous
7.CH +: Next
8.Power Key
9.MODE Key:Function & Mode Conversion
10.AUX Key:LINE IN Conversion
11.Volume +
12.Volume –