This is a very cool and completely functional tracked tank robot with Arduino UNO as the core controller. The entire vehicle adopts 2mm blue thickened aluminum alloy frame. Most of the components are connected with screw and copper pillar, and a few parts are designed with anti reverse socket. The kit includes all the accessaries to drive the robot. You can build your own robot with several simple steps of assembling and software debugging and learn all about Arduino UNO, robots, sensors, Bluetooth communication and obstacle avoidance and wireless remote control. We reserved some interfaces on the Multi-functional BST-4WD expansion board. Users can add a fan, infrared sensors, gray module and so on, or use the modules in our kit for secondary development. The robot can be used for personal learning, discipline competitions or DIY creations and it will performs well in many aspects.