Model: The locomotive comes with a digital decoder mfx, controlled high efficiency propulsion, a Telex coupler on the tender, and a multi-function sound effects generator. 4 axles powered. Traction tires. The 7226 smoke generator can be retrofitted into the locomotive. The headlights will work in conventional operation and can be controlled digitally. Length over the buffers 27.5 cm / 10-13/16".