Enter the amazing physical and digital world of programmable, remote-control robots and intelligent creations. With LEGO MINDSTORMS Robot Inventor (51515) building set, young robot fans can build five unique, personality-packed motorised robots and vehicles. Bring the creations to life, one at a time, using the free LEGO MINDSTORMS Robot Inventor App, and complete fun activities and challenging missions. With almost 1,000 pieces, kids will love to come up with their own tech toy creations and share them with other robot fans on LEGO Life. With all the Powered UP components - from new intelligent Hub with its 5x5 LED screen, 6-axis gyro and speaker, to powerful motors and accurate sensors - the latest evolution of LEGO MINDSTORMS coding robots for kids is the perfect way to help youngsters express and develop their creativity, while gaining essential 21st century STEM skills. An easy-to-install rechargeable lithium-ion battery is included with this cool toy. A smart device is required but not included. Note that the new LEGO Power Functions 2.0 hardware is not compatible with the EV3. Contains 949 pieces.