Winner of the Best Innovation of Show award at the Consumer Electronics Show, this is the robot kit that allows you to build an unlimited number of moving models from over 300 parts. Endorsed by For Inspiration and Recognition of Science and Technology (FIRST), and used by high school and college robotics classes, the kit includes four motors, 24 gears, powder-coated steel braces, an extendable arm and grasping claw, six rubber tires, and a digital camera, allowing you to create a variety of custom configurations, including a six-wheeled rescue machine using the arm and claw, an all-terrain tank, and a geological survey craft. This limited-edition version has a belt-driven tank tread kit and an additional motor and joint that allow the extendable arm to rotate. Motors that operate the gears and wheels, the extendable arm, and the digital camera are controlled by a six-channel radio transmitter with a 150' range. The digital camera can be mounted to any vehicle you create, allowing you to wirelessly transmit 640 x 480 color video directly to your television. Includes ten AA rechargeable batteries and a battery charger. Ages 14 and up. The manufacturer has confirmed that this item meets U.S. Federal toy safety standards for lead. 13 1/2" H x 13"W x 18 1/2" D. (5 lbs.)