Elenco Snap Circuits Lights Deluxe Bundle with Battery Eliminator (2 Items) Includes Complete Elenco Snap Circuits Lights Physics Kit Includes Elenco Snap Circuits Battery Eliminator - No need to replace batteries! Be amazed at what your music can do with the new Snap Circuits Lights Enjoy your music as the lights change to the beat - Color organ controlled by iPod or other MP3 player, voice or finger Plus many more Snap Circuits projects Part of the Award Winning Snap-Circuits educational electronics series from Elenco Electronics