This is the robotics kit that uses STEAM (Science, Technology, Engineering, Art, and Mathematics) curriculum to help a youngling create a custom R2 unit. The set comes with over 30 components including 20 frame pieces, wheels, control hub, proximity sensor, motor, and more that bring one’s droid™ creation to life. A free iOS/Android app enables one to control the droid’s direction, program its movements, and engage in 16 interactive missions. With 20 authentic droid sounds from Star Wars films and three sticker sheets for custom design. Includes 9-volt battery. Ages 8 and up. 12" H x 16" W x 6" L. (4 1/4 lbs.)