Product Features: Enhance your child's creativity with Go! Go! Smart educational toys; kids build their own toy train track and push cars around the track for miles of fun Interactive role-play features include an electronic train station, bridge and tunnel, and a conveyor belt hill; 32 interchangeable track pieces included Features VTech SmartPoint technology; 10 SmartPoint locations interact with SmartPoint vehicles to trigger fun phrases, music and sound effects Includes 1 motorized SmartPoint Train and an educational cargo car toy that teaches the letter "T" through pretend play; 3 included AAA batteries VTech Go! Go! Smart Wheels and Animals track pieces can be connected for maximum play; a great early learning center