Snap Circuits Light Watch and be amazed at what your music can do with the new Snap Circuits® LIGHT. Connect your iPhone® or other device and enjoy your music as the lights change to the beat. The strobe light with spinning patterns will amaze you with its visual effects.Elenco's Snap Circuits® makes learning electronics easy and fun! Just follow the colorful pictures in our manual and build over 175 exciting projects. All parts are mounted on plastic modules and snap together with ease. Enjoy hours of educational fun while learning about electronics. Features: Contains over 55 Snap-Together parts. Build over 175 exciting projects. Color organ controlled by iPhone® or other device voice or finger. Enjoy your music as the lights change to the beat. Snap-together parts require no tools and ensure correct connections. Requires 4 "AA" batteries (not included) Clear and concise illustrated manual included and available online.