The locomotive has an mfx digital decoder. It has a miniature motor in the boiler. 2 axles powered. Traction tires. The dual headlights change over with the direction of power, will work in conventional operation, and can be controlled digitally. The interior boiler is constructed of metal. The locomotive has numerous separately applied handrails and grab irons. The boiler details and other details are finely modelled. Length over the buffers 8 cm / 3-1/8".