Please take a good look and bid if you are satisfied. Operation has been confirmed. Please make sure you are satisfied with the product before bidding. We are not professional photographers, so please view all photos carefully before considering a purchase. We cannot answer inquiries regarding the purchase date or usage period of the product. We do not have knowledge of the product, so we cannot answer technical questions. Please make your judgment based on the product images. We are selling the product on the assumption that you will view all images. Please feel free to bid. Our products are very satisfactory and useful.