Take control of the play with this 14-piece interactive toy train set - the Action Tunnel Circle Set. Added Smart Tech Sound technology allows the battery-powered Record & Play 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. Each Action Tunnel creates a unique response from the engine, and by actively moving them around the tracks, you can program the play and change the trains journey.