Model: Locomotive comes with a digital decoder, controlled highefficiency propulsion, and a sound effects circuit. 2 axles powered. 4 traction tires. Headlights will work in conventional operation and can be controlled digitally. Sound effect of a whistle as well as the acceleration and braking delay can be controlled digitally with the 6021 Control Unit. Engineer's cabs and engine room have interior details. Separately applied grab irons. Length over the buffers 19.1 cm / 7-1/2".