Features: Intricately Detailed, Die-Cast Metal Body, Die-Cast Truck Sides, Pilots and Fuel Tank, Metal Chassis, Metal Handrails and Horn, Hand painted Engineer Cab Figure, Authentic Paint Schemes, Metal Wheels, Axles and Gears, Kadee-Compatible Coupler Mounting Pads, (2) Remote-Controlled Proto-Couplers, Prototypical Rule 17 Lighting, Directionally Controlled Constant Voltage LED Headlights, Lighted LED Cab Interiors, (2) Precision Flywheel-Equipped Motors, Onboard DCC/DCS Decoder, Locomotive Speed Control In Scale MPH Increments, 1:48 Scale Proportions, Proto-Sound 3.0 With The Digital Command System Featuring Freight Yard Proto-Effects, Unit Measures: 8 1/2" x 2 7/16" x 3 1/4", Operates On O-27 Curves.