The business characteristics of eBay are that products are sold in an auction mode. Sellers purchase their products through bidding, which greatly increases the profit of the products. When the product is offline, the buyer with the highest bid can obtain the product.

In addition to auctions, sellers can also combine fixed price and auction to sell. They can set a minimum price and then let buyers bid, which can enhance the buyer's shopping experience. However, it should be noted that once a product is published, the sales mode cannot be modified.