"Speedster 500" Robot Kit - Fully Assembled This quick and zippy little robot zooms and turns along smooth hard surfaces while flashing its colorful "headlights". The "Speedster 500" robot operates from two tiny electronic brains that consist of flashing rainbow LEDs. Each time one of the LEDs flash, it causes the robot to turn in a different direction. Operates from one 9V battery (not included). This robot is assembled -no soldering required!