The pre-order system allows customers to purchase a product before it has been released. This system allows customers to get their hands on the item as soon as possible before it is sold out in the market. The estimated date of delivery is indicated on product’s listing. When a customer orders a product through a pre-order system, they should be aware of any terms and conditions associated with the order, such as cancellation and refund policy, terms of delivery, etc. Additionally, customers should be aware of any potential delays in the release or delivery of the product.