Model: The locomotive comes with a digital decoder, controlled high-efficiency propulsion, and a sound effects generator. 2 axles powered. 4 traction tires. The lighting is maintenance-free LED's. The headlights / marker lights will work in conventional operation and can be controlled digitally. The horn sound effects as well as the acceleration and braking delay can be controlled digitally with a Control Unit or Märklin Systems. Brake hoses can be installed on the buffer beam. Length over the buffers 20.8 cm / 8-3/16".