FCC ID: 154-74503RD NASCAR Racer Radio Controlled Car Requires 4 pieces of battery for the Car, and one piece of 9-Vito hairdryer for transmitter. CAUTION: TO AVOID BATTERY BREAKAGE. Be sure to insert the batteries correctly and always follow the toy and battery manufacturers’ instructions; Do not mix old and new batteries or alkaline, standard (carbon-zinc) or rechargeable batteries, Always remove weak or dead batteries from the product.