This is a self-running online auction that takes place within a specified period of time without an auctioneer. As a bidder, you can submit your highest bid within this period, which the software will take into account step-by-step in the specified bidding steps. At the end of the auction, the highest bidder is automatically accepted. (like Ebay)

If a bid is made in the last 60 seconds, the lot will automatically be extended by 120 seconds. This process can be repeated several times, so that the real surcharge can differ significantly from the forecast surcharge time.