33974 Brio World Smart Tech Sound - Action Tunnel Circle Set Class_Class 47 Adds the finishing touches to

Adds the finishing touches to any signal box (See Ratio 236 and Peco NB-3 kits)

Can also be built into a ramp/roadway for use with our PN147 railway bridge kit

Earth Undercoat - 0

The respective relay’s switch position is directly dependent upon the state of this pair of outputs

Pre-fitted speaker for ease of Digital Sound installation

33974 Brio World Smart Tech Sound - Action Tunnel Circle Set Class_Class 47 Adds the finishing touches toTake control of the play with this 14 piece interactive toy train set the 33974 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