Take control of the play with this interactive toy train. The 33971 Record & Play Engine is a battery-powered train that’s packed full of playful technology and powerful enough to handle the heaviest loads. Use the red button on top of the engine to record your own sounds and then hear them play as it passes through the Sound Action Tunnel. The added Smart Tech Sound technology allows the engine to communicate with its surroundings, automatically responding to Smart Tech accessories with various train actions like multicolour lights, motion and sounds that enhance the imaginative play.