The rainbow light show is a device that displays colors on a strip of leds based on the movement of your hands. The device works with three infrared emitters and sensors, the emitters emit a signal which bounces off your hand and arrives back, based on the delay we can figure out how far away it is. Based on the distance of your hand the brightness of the lights will change. The lights are built out of RGB displays. Each Sensor corresponds to a specific color.