experiments and 30 circuitry projectsComplete integrated circuit, like those found in real computers and cell phonesLearn about circuitry and how it affects sound and voice modulationRig a security system for your bedroomSpring coil construction makes wiring safe and simpleNo tools or soldering requiredStep-by-step instructions make advanced concepts a snapThis advanced lab opens the door to the circuitry of sound with dozens of hands-on projects that get kids excited and involved.Safety warning: This product contains small parts that may present a choking hazard for young children.  (less)