The Smart Tech Engine with Action Tunnels starter kit is based on interactive smart technology that sets you off on your travels, and you are the decision maker!
Battery power comes to Brio® and the play is more interactive than ever! This modern engine communicates with its surroundings, reacting with lights, sounds and motion. You engineer the experience by placing the Smart Tech Bridge and Action Tunnels strategically. Depending on the tunnels, the battery-powered Smart Tech Engine will stop, back up or blink its lights.
Requires 2 AA batteries.