MRC DCC STEAM SOUND DECODER. BRAND NEW IN FACTORY BOX. Features: Different chuff sounds (4 articulated & 4 non-articulated), 12 different whistles and 4 separate bells, 18 accessory sounds and optional firebox lighting, 2 or 4 digit addressing, 14/28/128 speed steps with back emf, ability to change whistle type without difficult CV programming.