Features: Mini racing car, extremely portable. 20km/h top speed. 2.4GHz transmitter for anti-interference, enables multiple cars play together. 3.7V lipo battery provides about 20 minutes\' playing after 50 minutes\' charging. Full Function Control lets you steer the RC car left, right, forward and reverse. Big wheel and high ground clearance for great trafficability. Extra shell and tires included for DIY, and big / small wheels both included for you to build as you wish. Suitable for indoor and outdoor control.