Intricately Detailed, Durable ABS BodyDie-Cast Truck Sides, Pilots and Fuel TankMetal ChassisMetal Handrails and HornAuthentic Paint SchemeMetal Wheels, Axles and Gears(2) Remote-Controlled Proto-CouplersPrototypical Rule 17 LightingDirectionally Controlled Constant Voltage LED Headlight(2) Precision Flywheel-Equipped MotorsOnboard DCC/DCS DecoderLocomotive Speed Control In Scale MPH Increments1:48 Scale Proportions Proto-Sound 3.0 With The Digital Command System Featuring Freight Yard Proto-Effects Unit Measures: 12" x 2 1/2" x 3 1/2" Operates On O-27 Curves Diesel DCC Features F1 Bell F2 Horn F3 Start-up/Shut-down F4 PFA F5 Lights (except head/tail)F6 Master Volume F7 Front Coupler F8 Rear Coupler F9 Forward Signal F10 Reverse Signal F11 Grade Crossing F12 Clickety Clack (On/Off) F13 Idle Sequence 4 F14 Idle Sequence 3 F15 Idle Sequence 2 F16 Idle Sequence 1 F17 Extended Start-up F18 Extended Shut-down F19 Rev Up F20 Rev Down F21 One Shot Doppler F22 Coupler Slack F23 Coupler Close F24 Single Horn Blast F25 Engine SoundsF26 Brake SoundsF27 Cab ChatterF28 Feature Reset