Thank you for viewing. This is an auction for a MUS-D MDP-600 MDP-600F Programmable Board Switcher. [Operation Status] During the check, it powered on, each button responded, and the MDP-600 lamp lit up according to the foot switch number. Since there is no environment, no sound output confirmation has been done. [Condition of the item] There are scratches from normal use. Please check the photos. [Accessories] MDP-600 MDP-600F Based on the above, this product is a junk item, Please purchase it on the assumption of parts removal or repair. Please purchase only if you understand. If you are looking for one, please consider it at this opportunity.