4M Logiblocs Smart Circuits - STEM Educational Electronics Kit for Kids | Learn Coding & Circuit Building | Perfect for Home, Classroom & DIY Science Projects

The little blocks can be turned into more than 10 different smart circuits including an intruder alarm, metal detector and coin card. Change the input trigger and logic control to make your own gadgets that perform various functions. Requires three AAA batteries - not included. 5yrs and up