Just follow the colorful pictures in our manual and build exciting projects, such as FM radios, digital voice recorders, AM radios, burglar alarms, doorbells and much more! All parts are mounted on plastic modules and snap together with ease. Enjoy hours of educational fun while learning about electronics. No tools required. Uses “AA” batteries. Contains over 75 parts including voice recording IC, FM radio module, analog meter, transformer, relay, and 7-segment LED display. Build over 500 experiments.