Model: The locomotive has an mfx digital decoder and extensive sound functions. It also has controlled high-efficiency propulsion mounted in the boiler and a mechanism for cooling fans in the tender. 4 axles powered. Traction tires. 2 Märklin 7226 smoke generators can be installed in the locomotive. The dual headlights change over with the direction of travel. They and the smoke generator that can be installed in the locomotive will work in conventional operation and can be controlled digitally. The spacing between the locomotive and tender can be adjusted. Length over the buffers 35.5 cm / 13".