Stored in a dark place. Battery-powered, I have confirmed that all pads respond, input/output, sampling, effects work, and the headphone jack functions without any problems. Box and instruction manual included. Only the adapter is missing, so please purchase one separately. Instead, I will include a used BUFFALO CompactFlash 128MB (discontinued) and one cable. I don't think it feels overpriced since the memory card is more expensive than the adapter. Please purchase only if you understand that this is a used item.