Unique, rechargeable robot that your kids can build with the 477+ building blocks included in the package. You can operate it with the remote control or download the corresponding operation app on your mobile phone. It moves in any direction the child wishes, allowing endless hours of play! Made of high quality materials. Smooth corners that won't hurt your children's hands. Building block toys cultivate concentration, practice hands-on skills, help develop fine motor skills and promote hand-eye coordination. Suitable for ages 6+. 2 AAA batteries are required for the remote control (not included).