Connect your iPod or MP3 player and enjoy the music as your light circuit changes to the beat. The strobe light with spinning patterns creates some stunning visual effects. These snap circuits make learning about electronics fun and keeps you entertained for hours. With over 175 illustrated circuits from the manual these circuits are easy to build and uses the snap module design. Supplied with Gratnells tray for storage. Build over 175 light projects. Easy snap fit design. Includes manual. Contains over 55 parts such as. Infrared Detector. Strobe Light with spinning patterns. Colour changing LED. Glow-in-the-Dark flying fan. Strobe integrated circuit (IC). Fibre Optic communication. Colour organ controlled by iPod® or other MP3 player, voice or finger. Supplied with Gratnells tray for storage. 4x AA Batteries required (not included).