This incredible robot can actually see! As it explores, it emits invisible beams of IR (infrared) light which reflects off any obstacles in its path, including walls, rocks, humans, boxes, etc. Its simple brain and sensor causes the IR Vision Rover Robot to turn backwards and then go forward in a different direction avoiding the obstacle it has detected up to one foot away. It can even be remotely controlled from up to 25 feet away by using any standard VCR/TV IR remote control that you have. Simply point and press almost any button on your remote and you will notice that your IR Vision Rover Robot will immediately back up and then go forward in a different direction. The Rover emits beeps and blinks bright colorful LEDs as it explores. Operates from only two AA batteries (not included). Features DC-DC converter circuitry, sensitive IR sensor module, 2 IR LEDs, 9 colorful LEDs, 2 powerful motors and reliable drive train. This is a fun kit to build, and an excellent introduction to robotics for your student. Size about 5-1/2" x 6-1/2". Works on any smooth hard surface. Complete with all parts, PC board and instructions. Skill Level 2.