Description: Brand: DOITProduct: Smart Robot Car Tank Board: Aluminous Motor: DC Motor Working Voltage: 3-6 V Reducation Ratio: 1:48 No-load Current: 250m A (6V), 170m A (3V) No-load Speed: 24010% rpm (6V), 11010% rpm (3V) Note: the product is unassembled, not include the battery (AA battery), the color of the chassis board is Black Package:1* Robot Tank Kit 1* PS2 Stick 1* USB (Universal Serial Bus) Wire 2* Connect Wire 4* Wheel 4* Motor 1* Control Board Set