Teaches children how to assemble several electronic projects.

Motion sensor, light sensor, door alarm and push-button sound machine. Uses 9 volt battery (not included). "100% Klutz certified"--Cover Accompanied by circuit board, speaker, LED, photodetector for light sensor and motion sensor, door alarm switch, push-button switch, choose-a-sound switch, component wires, battery clip, alligator clip, switch pin, gadget dock, gadget case, and gadget covers in plastic and cardboard cases preceeding page 1 of cover.