The locomotives in this LGB G Scale Golden Spike 4-4-0 Locomotive Commemorative Set with Wood Case come equipped with mfx DCC decoders and extensive sound functions. Features of the DCC system include Features many light and sound functions such as headlights, cab lighting, firebox lights, and much more. The running sounds and a whistle and bell activated by reed switches will also work in analog operation. Each locomotive has a built-in smoke unit with steam exhaust synchronized with the wheels as well as cylinder steam and steam exhaust at the whistle, when the latter is activated. The cab doors and smoke box doors can be opened. There is a coupling between each locomotive and its tender, which can be adjusted for two lengths. A reproduction gold-plated metal track spike and an American flag are included with the 4-4-0 locomotives. The Golden Spike 4-4-0 Locomotive Commemorative Set is packaged in a vintage design wooden case.