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