DCC Sound-Equipped SC-44 Charger uses Siemen Mobility’s original design documentation and sound files. Sound package includes horn, bell, prime mover, start-up/shutdown, compressor, cooling fan, coupler close/release, brake release and application, crew alert, grade crossing quill, departing and arriving station announcements, and more TCS true CD quality audio in 16-bit 44,100Hz sound, with voice-guided Audio Assist programming tool for easy set-up of almost all decoder functionality Lighting functions include: Directional Headlights, Interior Corridor Work Lights, Roof-Mounted Strobe Lights Per Prototype, Marker Lights, Steady/Alternate Flashing Ditch Lights Keep-Alive device for uninterrupted operation even over dirty track or loss of electrical contact, Model Features Include: Separately Applied Windshield Wipers, Grab Irons and Detail Parts Performs best on 11.25" radius curves or greater, N Scale 1:160