MTH 30-2138-1 & 30-2138-3 Union Pacific UP NW 2 Switcher Diesel Engine Cab # 1050 w/ Protosound 1 & calf O scale newThis item was tested for movement functionality. Operating Headlight Die Cast Trucks Operating Die cast Metal Coupler Operates on O 27 Track DCRU Electronic Reverse by QSI Compatible With Most AC Transformers Precision Flywheel Equipped motors All Metal Wheels & Gears Equipped with Electronic Horn ABS Intricately Detailed Body Weighs almost 4 Pounds ProtoSound 1 12272022