Model: The locomotive has an mfx+ digital decoder and extensive sound functions. It also has controlled high-efficiency propulsion with a flywheel, in the boiler. 3 axles powered. Traction tires. The dual headlights change over with the direction of travel, will work in conventional operation, and can be controlled digitally. There are headlights on the tender. Maintenance-free warm white LEDs are used for the lighting. The smoke unit contact will work in conventional operation and can be controlled digitally. A 72270 smoke unit can be installed in the locomotive. The locomotive is constructed mostly of metal such as the boiler, smoke stack, dome, cab, running boards, and tender. There is a close coupling between the locomotive and tender. Length over the buffers 23.7 cm / 9-5/16".