Description:With the adoption of remote control and wireless feature, this science car model can be an excellent toy for children and parent to play together for cultivate their relationship and easy for children to entertain themselves.Since this science car model need to assembled by users, it can cultivate children hand-on ability and logical thing capability.This science car model is made of wood and electronic component.The length of this science car model is 9cm, the width is 12cm.It is suitable for children' early development. The experimental principle of this science car model is that it need radio wave technology to achieve it. When we install batteries on the remote control and the racing car, they are energized. We press the corresponding command on the remote control to operate, and the radio signal is transmitted in the air and transmitted to the racing receiver. On the above, the receiver encodes and executes the corresponding operation, thus achieving the remote control effect.Item Name: Science Car ModelMaterial: Wood,Electronic ComponentBattery: 4 x AA Batteries(Not Included)Features: Wireless, Versatile, Fine WorkmanshipSize Details: 9cm x 12cm/3.54" x 4.72" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Science Car Model1 x Remote Control