Exost loop speed training set is "build & race without limit" Set. You can challenge the gravity with the vehicle's speed. The vehicle rechargeable ( included) is remote controlled ( included). vehicle's maximum speed is 8 km/h. The controller has backward, forward, & boost function: 5S high speed. There are 18 tubes included to give you maximum creative satisfaction. 4 challenges: 1 loop, 2 chicanes, 1 straight line. The car has led light which gives an excellent lighting effect while it is on the move. Play time is over 10 minutes. Requires 2Xaaa batteries for the remote ( not included). 1 recharging cable included. Instruction guide included.