Bachmann 63401 H0 Alco S2 Switcher w/Sound & DCC -- Santa Fe #2354 (blue, yellow)Bachmann welcomes this popular switcher to our affordable line of DCC-ready diesels. With all new toolingOur S2 features:• 16 Bit polyphonic Sound with horn, bell, and prime mover sounds• die-cast chassis• all-wheel drive• flywheels• operating headlights• prototypical Blunt trucks• E-Z Mate® Mark II couplers.