This is a Fernandes ZO-3 electric guitar, a Disney Store exclusive limited to 200 units. It is a used item, but I'm selling it because I bought it for home practice but rarely used it and kept it stored away. I confirmed that the built-in amplifier turns on with a battery replacement and produces sound. However, although the volume can be adjusted and the functions work fine, the dial knob is missing. I will include the instruction manual, two types of hex wrenches, a strap, and a clip-on tuner. - Brand: Fernandes - Model Name: Music Behind the Magic Thank you for your consideration.