I purchased this item a while ago and played with it for a short period. After that, it was stored at home for a long time. It's a rare item that is no longer available. I have reset it with batteries, but I haven't confirmed all the detailed functions. Batteries are not included, and the item will be shipped as the main unit only, so please prepare button batteries. Due to the light color, there is some discoloration at the seams due to aging. (See photo 3) To prevent swapping and avoid any trouble, returns and exchanges are not accepted. Thank you for your understanding.