Incoming: you've landed on the moon, right in your own living room! Elenco's Moon Walker II Robot Building Kit is the coolest, most high tech robot that all children will love. Educational Toys Planet offers this robot kit to give every child the opportunity to build and observe a real robot. Once you assemble your Moon Walker II Robot Building Kit, watch as it uses a phototransistor to sense changes in light and a condenser microphone to sense changes in sound, just like the real robots astronauts use in outer space! The Moon Walker II is actually able to convert these light and noise electrical signals into power for its motor. So clap your hands, or flip a light switch, and watch your robot gain enough energy to zoom around the room. The robot requires 1 AA battery and a love of awesome, futuristic technology.