E-Blox is an emerging leader in educational electronic toys and products that engage children to Learn by BuildingTM. With the Circuit Blox 120 project set you can build 120 different 3D circuits that all teach STEM. Light a star, spin a motor to launch a fan high in the air, play music, sirens and space battle sounds, and even build your own FM radio! Contains 49 parts. Directly compatible with other brick building construction sets. Requires 3 "AA" batteries. Ages 8 and up.