Snap Circuits 500 with Computer Interface is a computerized version of the Snap Circuits 500. On top of great science product from 500 circuit kit, Snap Circuits 500 with Computer Interface comes with 73 amazing experiments with computer interface. Snap Circuits by Elenco are science learning toy. With over 500 easy-to-follow projects included in the manual, which can even be accessed online, your children will be building AM/FM radios, voice recorders, alarms, doorbells, and much more in no time. Educational Toys Planet offers this award winning toy as the perfect science kit for the most curious children. Including the specialized voice recording IC, FM radio module, analog meter, transformer, relay, and 7-segment LED display, Elenco's Snap Circuits 500 with Computer Interface comes with over 75 parts mounted on color coded blocks that easily snap together. So grab some AA batteries, leave your tool belt behind, and get ready to snap together the coolest machines ever built totally by you!