Learning Resources Circuit Explorer Rover. Construction play meets electrical engineering in this simple, snap together building system – powered by real circuits! Line up the circuitry graphics on the oversized pieces and snap them together to build a fully powered, large-scale, space-themed world. Follow the easy instructions to build a Space Rover with light-up headlights. Then launch into hours of screen-free, pretend-play fun with the included astronaut and robot figures! Requires 12 AAA batteries, not included. Warning This toy produces flashes that may trigger epilepsy in sensitised individuals