This is the comprehensive electronics kit that enables budding engineers to build 500 experiments safely without soldering. The projects cover a wide gamut of electronic operations, such as programming LED light patterns, basic games, sound effects, rhythm boxes, FM radio transmission, digital dice, timers, wave generators, amplifiers, alarms, and more. The kit's sturdy plastic attaché case contains all the necessary components for each project, such as a keyboard, LCD screen, LED lights, speaker and transformer. A 665-hole breadboard with 90 spring terminals facilitates easy, secure wiring connections for the included reusable wires, resistors, transistors, capacitors, and diodes so experimenters can see results quickly and safely. A comprehensive manual--written in a friendly, instructional style--guides young engineers through the principles of electronics, from basic wiring to software programming, using clear schematics and wiring diagrams. Includes 328 electric accessories. Requires 6 AA batteries. Ages 10 and up. 15" H x 19" W x 5" D. (11 lbs.)