DESC: Investigate the magic of electricity through this unique versatile laboratory. Young electronic engineers can build ten different circut projects with one unit including a Morse code telegraph a burglar alarm and a radio that really works!!! The 20 page illustrated project guide provides easy to follow instructions and diagrams to understand complex electronic concepts. PLUS the spring coil construction makes wiring simple and safe no tools or soldering required!!! Requires one 9volt batter not included. Ages 10 and up.