this is a MTH 8032401 HO Pennsylvania Railroad H10 2-8-0 Steam Locomotive with Proto-Sound 3.0 & DCC #7103. Model features include die cast boiler, chassis and tender body, real coal load in tender, 5-pole precision flywheel-equipped skew-wound motor, synchronized puffing ProtoSmoke(TM) system, constant voltage headlight and much more. Operates on 18 radius curves.