Calling all young inventors, it's time to create our own real pro machines! Snap Circuits Pro 500 Learning Center is a world famous circuits and electrical learning toy offered by the high quality toy company Elenco. 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, Snap Circuits Pro 500 Learning Center 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!