Model: The locomotive is constructed of metal with separately applied plastic details. The engineer's cab has doors that can be opened. The locomotive has separately applied metal hand rails. It has controlled high-efficiency propulsion, a digital decoder, and a sound effects generator. It can be operated with AC power, DC power, Märklin Digital, and Märklin Systems. The locomotive has 3 axles powered and 2 traction tires. The dual headlights change over with the direction of travel, and they and the smoke generator will work in conventional operation and can be controlled digitally. The smoke generator, whistle, and steam locomotive operating sounds as well as the direct control (acceleration / braking delay) can be controlled with a Control Unit or Märklin Systems. The branch line bell sounds as well as the air compressor and the sound of coal being shoveled can be controlled with Märklin Systems. Minimum radius for operation 1,020 mm / 40-3/16". Length over the buffers 26.8 cm / 10-9/16".