This kit can be used to build a remote controlled racing car. The elements are compatible with lego bricks. The parts are durable and many of the set pieces are movable. After assembling the car, we can easily control it with the included remote control. The toy is intended for children over 6 years old. The set consists of 419 items, including: blocks, remote control powered by AA batteries (2 x 1.5 V - batteries not included), 400 mAh rechargeable battery (3.6 V), USB charger. Specifications: Charging time is about 1.5-2 hours. operating distance up to 50 m duration of operation about 10-15 min. maximum speed about 6 km/h. the set is suitable for children from 6 years old number of components 419 ***Recommended for ages 6 and up