Electric guitar with built-in speaker. Insert a 9V square battery and switch it on. Sound will come out when you turn up the volume. I have confirmed that sound comes out normally from the built-in speaker and the external output jack. The volume pot and switch have been replaced, so there is no scratchiness or noise. There is no sound blockage or buzzing. The neck is straight. Fret life is about 70-80% remaining. The strings have been replaced after cleaning. There are some scratches as it is a used item. We are looking forward to your purchase with your understanding. A soft case, a spare 1st string (which breaks easily), and a pick are included.