Real tech lab for young scientists! Elenco's Electronic Playground 130 Learning Center is an engaging science kit that will entertain the curious children and teach them the principles of electronics, magnetism, electricity and other aspects of physics. This kids tech science lab features all the tools and materials your young scientist needs to conduct more than 130 his/her own scientific experiments. The science project lab includes integrated speaker, 7-segment LED display, 2 built-in circuits, rotary controls. The children can work with Electronic Playground 130 Learning Center at home or in their middle or high school science lab on such electronic projects as building strobe light, constructing AM radio, making electronic organ, designing timer, making an electronic siren or burglar alarm, experimenting with logic circuits, and much more. This children electronic lab from Educational Toys Planet comes with the instruction manual for fun project ideas, and their scientific explanation. This science project kit utilizes safe and easy spring-hook up method. Electronic Playground 130 Learning Center requires 6 AA batteries.