Includes all the pieces kids need to build a Communication Station with a rotating Radar Dish, Power Station with Rover Charger, and a Powered Space Rover and a free wheeling Space Rover both with light-up headlights. Also includes two astronauts and two robot figures for pretend play and stickers for customization. Collect multiple Circuit Explorer sets to build your system with interchangeable pieces and power sources. STEM learning system provides positive, hands-on experience with key engineering and design principles. Communication Station, Rover and Power Station require 3 AAA batteries each. Ages 6 and up.