INTRUDER ALERT! INTRUDER ALERT! Don't worry, no cheap Halloween tricks in this bag. Elenco's new edition of the bestselling Snap Circuit Motion Detector Electronic Mini Kit is an incredible construction toy that allows your children to explore the world of physics, to resolve the mystery of the electrical circuits, to build a fully functioning and tremendously exciting electrical model. And to do it all both with both ease and safety! Motion Detector that your boy or girl will proudly present to you, will alert you with a laser sound, while your child will do the same in a lot more emotional and excited expressions! Snap Circuit Motion Detector Electronic Mini Kit brought to you by Educational Toys Planet is an electronic building project that contains a well-built plastic model, all necessary and easily to insert components and bright and colorful instruction set. Children can assemble 12 electronic projects with this Snap Circuit kit. Freeze! Your child will catch your every move - and a move to get him this exceptional learning tool was definitely a great one. The motion detector kit requires 3 AA batteries (not included).