Communicate With Secret Messages Like Spies The Spy Tech Kit introduces kids to electronics and computer science in a creative and fun way! Design and make cool spy gadgets using Logiblocs. What do you get? 7 plug together blocks including POWER BASE, BUTTON, LIGHT SENSOR, CIRCUIT, NOT, BLEEPER, RECORDER and a detailed instruction booklet. What can it do? Over 30 projects and applications such as Coin Guard, Surprise Message Box, Door Bell, Intruder Warning Device, and many more. You can do loads of things with this kit including a chance to test your logical skills. Just let your imagination go, let your horizons expand and develop your hidden talents! All Logiblocs interact with each other. Combine this kit with the other Logibloc Kits available to increase the power and flexibility of your experiments!