With Tonka power movers, you take control! this rugged dump truck features new motion drive technology allowing for fun and intuitive play that brings the action to life! with motion drive technology, push the vehicle forward to make the engine rev and activate the lights; push the vehicle backward to hear back-up sounds; work the dump bed to hear hydraulic sounds and flash the lights. The features activated by the child's interaction with the vehicle create an engaging and realistic, Tonka tough experience every time they play.