BACHMANN E-Z COMMAND DECODER WITH WIRE HARNESSIntroduce your locomotives to the digital age with our basic 1 amp decoders; 1 per card. compatible with NMRA-compliant DCC systems programming on the main control speed, direction and lighting functions two- or four-digit addresses service mode decoder lock for changing the address on the layout ops mode programming advanced consisting acceleration, deceleration, and start voltage adjustment 14, 27, 28, 128 speed steps wire harness (for hard-wiring) instructions included