Model: The locomotive frame and body are constructed of metal. The locomotive has a built-in DCC digital decoder and sound generator. The motor has a flywheel. 4 axles powered. Traction tires. The headlights and marker lights change over with the direction of travel. Warm white LEDs are used for the lighting. The headlights, marker lights, and cab lights can be controlled digitally. The locomotive has NEM coupler pockets. Length over the buffers 119 mm / 4-11/16".