Model: The locomotive has an mfx+ digital decoder and extensive light and sound functions. It also has controlled high-efficiency propulsion with a flywheel, in the boiler. Three axles powered. Traction tires. The locomotive and the tender are constructed mostly of metal. The locomotive has a factory-installed smoke unit. Triple headlights on the locomotive and the tender, which change over with the direction of travel, and the built-in smoke unit will work in conventional operation and can be controlled digitally. The emergency light on the smoke box door can be controlled separately in digital operation. Cab lighting and firebox flickering can also be controlled separately in digital operation. Maintenance-free warm white and red LEDs are used for the lighting. There is an adjustable close coupling with a guide mechanism between the locomotive and tender. There is a close coupler with a guide mechanism and an NEM pocket on the tender. The minimum radius for operation is 360 mm / 14-3/16". There are many separately applied details such as steps, brake hoses, piping, and imitation prototype couplers included. Length over the buffers approximately 24.5 cm / 9-5/8".Prototype: Danish State Railways (DSB) steam locomotive with a tender, road number E 991. The locomotive looks as it did around 2007.