This Broadway GE ES44AC is based on one of the most popular road diesels to hit the rails in the 21st Century. It features full Paragon3 sound and DCC for realistic sound and motor control. The Paragon3 sound system works with all Broadway Limited Rolling Thunder(TM) advanced sound systems. Other features of this diesel locomotive include a heavy die cast chassis, smooth-running flywheel-equipped drive, a smoke unit for added realism, roadname-specific details and body (including C45AC details for UP units) directional lighting and magnetic knuckle couplers. This HO Scale GE ES44AC can be operated on all DCC systems as well as on standard DC railroads (with limited sound functionality). This model has wheels profiled to operate on Code 70 and larger rail.