Cool while seeing some robot car wandering around? It is very easy. With a car platform, add some micro-controller (such as Arduino) and sensor modules, and program it. Then you made your own robot car. Features: Mechanical structure is simple, very easy to install . The car comes with tachometer encoder Uses four deceleration direct current machine curve to be nimble, the directivity is good. Four actuations, horsepower fullness. The chassis big and steady very easy to expand Note: motor power supply is 3V~6V. All the parameter above is tested without load. Isi Paket: 2 x Car chassis 4 x Gear Motor (1:48) 4 x Speed encoder 4 x Wheels Several screw fasteners