Model: The locomotive comes with a digital decoder, controlled high-efficiency propulsion, and a horn sound effect module. 2 axles powered. 4 traction tires. The locomotive has dual headlights that will work in conventional operation and that can be controlled digitally. The horn sound effect as well as the acceleration and braking delay can be controlled with a Control Unit or Märklin Systems. The locomotive has different pantographs and separately applied metal handrails. Length over the buffers 20.4 cm / 8-1/16".