These are E-Z Command® Decoders with Wire Harness by Bachmann®. Suitable for Ages 8 & Older. FEATURES: E-Z Command® basic 1 amp locomotive decoders. Wire harness for hard-wiring. Compatible with NMRA-compliant DCC systems. Programming on the main. Service mode decoder lock for changing the address on the layout. Control speed, direction and lighting functions (including dimming). Ops mode programming. 28/128 speed steps. 2- or 4-digit addressing. Advanced consisting. Acceleration, deceleration, and start voltage adjustment. Operation on standard DC systems (analog operation) possible, and is a feature that can be disabled. Detailed instructions. INCLUDES: (3) Decoders SPECS: Dimensions: 0.90" x 0.63" x 0.14" (23mm x 16mm x 3.5mm) Function Output: 100 mA Motor Output: 1 A kr1/24/06 ir/jxs