This is a rare Pignose electric guitar with a built-in amplifier and a tremolo arm. Insert a 9V square battery and pull up the volume knob to turn it on. The volume knob is not original. I have confirmed that sound comes out normally from the external output jack, the built-in speaker, and the headphone jack. There is no scratchy noise. Distortion is applied as the volume is increased. The neck is straight. The string height has been adjusted to a comfortable level. There is no fret buzz or dead notes. The fretboard and body have been cleaned, and the strings have been replaced. There are some minor scratches in various places due to it being a used item. Please understand that this is a used item before purchasing.