Model: The body and frame are constructed of die-cast zinc. The locomotive has a built-in digital decoder and a sound generator for operation with mfx and DCC. The locomotive motor has a flywheel. 4 axles powered. Traction tires. Warm white LEDs are used for the headlights. They and the marker lights change over with the direction of travel and along with the cab lighting can be controlled digitally. The locomotive has a close coupler mechanism. The headlights / marker lights change over with the direction of travel and will work in analog operation. The locomotive has separately applied grab irons. Length over the buffers 104 mm / 4-1/8".