Digitrax HO DH165K1A Plug-N-Play Mobile Decoder for Kato SD40-2, AC4400 Locos (Accepts SFX Sound Bug Sound Modules)

Accepts Plug-in SFX SoundBugTM sound modules
Onboard White LEDs for Headlights and Ditch lights

Digitrax LocoMotion System-Your locomotives look like the real thing. The Digitrax LocoMotion System makes them run like the real thing, too! Torque Compensation for smooth as silk silent operation.

128 Speed Step operation (14 or 28 steps can also be used).
Momentum with acceleration and deceleration.
Normal Direction of Travel is user selectable.
Switching Speed feature for easier and faster access to yard speeds.
3 Step Speed Tables set start, mid and max voltage for custom control.
28 Step Speed Tables with 256 level resolution for precise control.
Scalable Speed Stabilization with simple setup and 1024 level resolution.
SuperSonic motor drive for silent operation.
FX3 Functions for prototypical lighting effects: Constant Brightness Lighting directional or independent control.
Realistic Effects like Ditch lights, Mars lights, strobes, and many more.
Dynamic and Static Qualifiers operate functions based on direction, F0 on or off, loco direction and F0, and whether loco is moving.
Function Remapping for custom function setup.
Master Light Switch turns off all lights and functions with one keystroke.
Advanced Consist Function Controls
Plug 'N Play design makes installation quick and easy.
Transponder equipped ready for transponding on your layout.
Compatible with digital surround sound systems
All Mode Programming with Operations Mode Read Back-read back CV values right on the mainline.
Decoder Factory CV Reset with or without speed table initialize.
Motor Isolation Detection prevents damage to your decoder.
Basic, Advanced and UniVersal Consisting
2 Digit and 4 Digit Addressing
DCC Compatible