This set of customizable gizmos includes a book of games, pranks, and jokes that make the most of them. The 16 different sound-and-gizmo combinations offer limitless opportunities for immature humor. Follow simple instructions to wire a door alarm, motion sensor, light sensor, or push-button device; then program it with one of four funny sounds. Comes With: circuit board, speaker, LED, battery clip, photoresistor, switches, project wires, alligator clip, gadget dock, gadget case, 4 gadget covers, 2 doorbell hangers, 2 door alarm hangers •Create wonderful things • Be good • Have fun