PIONEER Pioneer DJM-500 DJ Mixer I am not familiar with the details, so the operation has not been confirmed. Overall, there are no noticeable scratches or stains, and it is in relatively clean condition. Power has been turned on. Various knobs and levers move smoothly. The lamps on the various buttons light up when pressed. "OK" is written in permanent marker on the upper left (photo 15). The power cable is not included. Please prepare one separately. Other accessories are not included. Everything in the photos is included. Please consider this if you can utilize it as is. The price will be changed from time to time depending on sales, so basically, please refrain from price negotiations. Immediate purchase without comment is OK, and feel free to "Like" the item. This is a used item, so we cannot guarantee the quality. Thank you for your understanding.