Assemble your own robot with a brain with the 4M Smart Robot kit. The 4M Smart Robot includes everything you need to build a fun and functional robot. When activated, the smart robot moves under its own power and changes direction when it encounters an obstacle. No special tools or knowledge required; the kit contains detailed instructions and all the necessary parts to let the fun begin. Requires one AA battery (not included). Recommended for ages 8 years and up.