From the Manufacturer
Allegheny HO scale steam locomotive come equipped with 5-pole motor with flywheel, improved power pickup and DCC/Sound Equipped with LokSound V4.0 soundchip decoder. Locomotive can be used on all standard DCC systems.
Rivarossi item number HR2356 HO Scale Steam 2-6-6-6 Allegheny DCC Sound Equipped Chesapeake & Ohio Allegheny. Sound unit by LokSound featuring new LokSound V4.0 Decoder which can be used on all standard DCC systems.Details Included:Pristine Finish, Road Number 1637, Metal Handrails, 5-Pole Motor with Flywheel, Operating Headlight, Knuckle Couples.