This is a used ZOOM GFX-707. Operation has been confirmed as follows, with no issues: * Power adapter connection and battery operation confirmed. * Effects and rhythm functions are working without problems. * No scratchy noise from INPUT and OUTPUT shield connections. * No malfunctions with knobs, switches, foot switches, or pedals. The unit has some scratches, dirt, and rust as shown in the photos. Initialized to factory default settings. \* This product does not include a power adapter. ＜Product Contents＞ * ZOOM GFX-707 unit