Between 2002 and 2019, General Electric built over 3,700 of these six-axle, 4400 HP locomotives. Today, they can be found on every Class I railroad in North America. Our models will all have our new Paragon4 DC/DCC Sound and Control system, including Rolling Thunder and extra built-in capacity for better electrical pick-up.Our Paragon4 N scale diesel models have five independent light outputs, and the ES44AC models will have the following independently controllable lights in each model: Headlight, Rear Light, Cab Light, Front Numberboards, Front Ditch Lights. Industry-leading Model Features: Paragon4 Sound & Control System featuring ROLLING THUNDER Integral Dual-Mode Decoder with Back EMF for Superb Slow Speed Operation in DC and DCC Precision Drive Mechanism Engineered for Heavy Towing and Smooth Slow Speed Operation All Wheel Electrical Pick-up ABS Body with Die Cast Chassis for Maximum Tractive Effort Premium Caliber Painting Prototypically Accurate Paint Schemes and Road Numbers Many Separately Applied Details such as Handrails, Grab Irons, Horns, Bell, and Cab Roof Antenna Prototypical Light Operation Prototypically Accurate Sounds for the GE ES44AC Diesel Locomotive MicroTrains-compatible Couplers (2) Will Operate on Code 55, Code 70, and Code 80 Rail Minimum Operating Radius: 9 inches Paragon4 Sound & Control System Features: Operates in DC & DCC with improved DC speed control (use DCMaster for DC Sound) Built-In extra capacitance to navigate imperfect track Pro Lighting Mode offers individual control of all lights on model Switcher Mode for precise low speed control Record & Play Operation - Records and plays back sounds and movements once or repeatedly for automatic operation High Resolution Audio Quillable Horn for various whistle lengths and patterns Choice of 3 selectable Horns Alternate Whistle / Horn where applicable for locomotive with air horn and steam whistle - both the main whistle and alternate can be easily played Adjustable bell ringing interval for faster or slower bell Numerous user-mappable functions with available keys Multiple realistic passenger and crew sounds play on command Grade Crossing Automatic Signal Automatic Forward / Reverse Signal Prime Mover sound intensity varies with load Individually adjustable sound volumes for each effect EZ Reset Button for quick return to factory default settings Specifications on this page subject to change. THANKS FOR YOUR INTEREST IN OUR ITEMS.