33974 Brio World Smart Tech Sound - Action Tunnel Circle Set Availability_Out-of-Stock For DCC railways the LEDs

For DCC railways the LEDs remain constantly on no matter which direction the locomotive is travelling

4mm (on the capacitor: 2

needed to be rotated for return journeys

built in the UK

With multiple levels of fun you can drive to the top and park

33974 Brio World Smart Tech Sound - Action Tunnel Circle Set Availability_Out-of-Stock For DCC railways the LEDsTake 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