Bounce car use the built-in 500 mah built-in lithium (including); The remote control battery 3 x AA battery (not included) High shining 3 led lights,more rich sense of science and technology. Unique design, cool appearance. High quality material, more attractive. Two flexible ,large retractable and anti-shock wheels adapt to all driving styles. Open the wheels for greater stability in high-speed,activate the compact mode to enhance agility and to drive through narrow spaces on smooth roads. Swipe for perfect turn and hit predefined buttons for acrobatics like spins or jumps,at high speed the bounce car can balance automatically. It relays on two wheels to balance, sprint, go forward ,go backward, rotate,steer quickly and accurately, even it can jump over obstacles or jump up the steps, maximum height of about