Please take a good look and bid if you like it. It works. Please make sure you are satisfied with the product before bidding. We are not photography experts, so the product may not be exactly as shown in the photos. We cannot answer questions about when the product was purchased or how long it was used. We cannot answer technical questions because we do not have knowledge of the product. Please make your judgment based on the product images. Feel free to bid. Our products are very satisfying and convenient.