The MTH Premier 20-3034-1 models Chicago & North Western's streamlined E-4 4-6-4 Hudson locomotive #4008 and includes ProtoSound 1.0, a Pittman motor, die-cast chassis, boiler and tender, die-cast leading, trailing and tender trucks, operating Proto-Smoke, operating marker lights, a constant-voltage headlight, remote-controlled Proto-Coupler, precision ball-bearing-equipped gearbox, and detailed cab interior with engineer figures. The locomotive is designed for three-rail O Gauge operation and MTH specifies Hi-Rail wheels.