Model: The locomotive comes with a digital decoder, C-Sine high-efficiency propulsion and a sound effects generator. 3 axles powered. 4 traction tires. The headlights will work in conventional operation and can be controlled digitally. The horn sound effect as well as the acceleration and braking delay can be controlled digitally with the 6021 Control Unit. Length over the buffers 22.2 cm / 8-3/4".