Power on, basic sound output, and each effect's operation have been confirmed. It's ready to use as rack equipment. There are minor scratches from use, but there is tape residue (see photo 6). Other than that, it's in beautiful condition overall with no noticeable damage. Please assess the condition based on the photos. Due to being precision equipment, returns and cancellations after purchase are not accepted. Shipping is free, but we cannot ship to Okinawa and other remote islands.