Proto 2000 Diesel GP9 Phase I Powered w/QSI Quantum Sound System(TM) -- Union Pacific #151 (yellow, gray)

* Heavy Diecast Chassis * DC Motor with 5-Pole Skew-Wound Armature * Precisely Meshed Worm Gear & Spur Teeth for Silent Running * Magnetic Knuckle Couplers * Available With or Without Factory-Installed Sound & DCC * Limited Availability Sound can be operated with a standard DC power pack as well as DCC controllers. Sound features include: Diesel Engine, Horn, Bell, Squealing Brakes, Doppler Effect, Air Let Off (in neutral), Headlight, and Trailer which mutes whistle and bell for doubleheading.