The Roaring Rails' powerful locomotive sounds its horn and rings its bell to warn everyone along the line that nothing can deter this train from finishing its route. Roaring Rails features a DCC sound-equipped GP40 with a diesel sound package that includes prototypical prime mover, three air horns, and bell–all in polyphonic 16-bit sound that you can control with our E-Z Command digital control system. This digitally controlled train set with sound features: DCC sound-equipped EMD GP40 diesel locomotive with operating headlight, box car, gondola, wide-vision caboose, E-Z Command Control Center with wall pack and speed controller, body-mounted E-Z Mate couplers, 34" x 24" oval of snap-fit nickel silver E-Z Track including 11 pieces of curved track, 4 pieces of straight track, and 1 plug-in terminal rerailer, illustrated instruction manual.