Logiblocs is the electronic discovery system that helps children understand the world of technology that we live in. By plugging the blocs together, children can build control systems and various gadgets that are fun and useful! Build useful electronic circuits and alarms and explore the world of Logiblocs with this kit. Over 10 projects are included to make a Door Bell, Solar Alarm, Fridge Alarm, and many more. The kit includes essential blocs for building all kinds of different alarms.