There are uncertainties in the products in the mystery box, all by luck. Create surprises and mystery, you may be the lucky one! ! The products are random, you cannot specify the product, if you buy multiple lucky boxes, you may receive the same product. This is an adventurous challenge of luck, and you may have a big surprise. But if you are not willing to take risks, then this game is not for you, this is a game of brave men. If you don`t like the product after receiving it, it is not a quality problem, and does not support any refunds or bad reviews. It is an experience in itself, a game of luck for the brave. Different products and different experiences, just like your good luck. Welcome OEM order(logo, boot up screen, customized packaging...).syi