Roadster with cool light effects. Controlled via Bluetooth using the supplied remote control (2.4 GHz) or the remote control app, which is available free of charge. The remote control requires 3 x 1.5 V micro batteries (AAA). The vehicle requires 4 x 1.5 V micro batteries (AAA). The batteries are not included. Vehicle dimensions: approx. 20 x 10 x 6 cm (LxDxH).