Parents' Choice Gold Award kit with radio tuner, op amp, timer, multimeter, microphone, speaker, and 135 other components. Serious electrical engineering. Serious fun. Tap into the awesome world of electronics with this advanced system of snap-together electronic building blocks. For some experiments, you will also need: One 9-volt square battery, and other common household items.

• 146 experiments
• 141 pieces
• 168 page full color illustrated manual that gives you clear assembly diagrams for each circuit, explains how to conduct each experiment, and describes what happens in each circuit, making electrical engineering seriously fun and seriously educational!
• Requires one 9-volt square battery, not included.
• Intended for ages 10 and up

⚠️WARNING: CHOKING HAZARD - Contains Small Parts.
Not for children under 3 years. Strangulation hazard - long cords. Only suitable for children over 8 years.  For use under adult supervision only. Instructions for responsible persons are included and must be followed.