The sampler powers on via batteries and outputs sound through the stereo outputs, but not all keys work. Most of the buttons and knobs gave some sort of visual feedback by either lighting up or by giving an indication on the display that an adjustment was being made. The power button is missing, but is still operable. No further testing was done. Due to the issues described, it is being sold for parts or repair in as is condition. Use the pictures provided to judge its cosmetic condition. If you have any requests or questions, ask before purchasing. Store Policies: All sales are final and AS IS unless stated otherwise. Packages are dropped off within 3 business days after payment is received. Paid items sold after 5PM central time on Thursday will be shipped the following Monday. Requests to remove packing slips or invoices will be ignored. If you intend to resell, it is your responsibility to inspect all items before selling to your customer.