Please check the appearance in the images. Operation confirmed. Maintenance items: * Internal cleaning, dust removal * Capacitors checked for leakage, capacity, etc. * Each solder joint checked, and re-soldered where necessary. Each switch and tone adjustment has been treated to remove scratchy noise, and there are no problems. ○ Please contact us regarding initial defects before confirming receipt (within 3 days of the date of receipt). Please note that returns are not accepted after confirming receipt. Also, we do not accept returns for initial defects other than those related to the confirmed operational content. ○ In any case (including initial defects), the buyer is responsible for the return shipping costs. ○ Please understand that there may be scratches and dirt that are difficult to see in the photos.