Blunami Electric 8-Function 21-Pin Digital Sound Decoder (TUC886603)

The Blunami 21-pin digital sound decoder is a compact 1-amp module with eight function outputs designed for quick plug-in operation with standard 21-pin NEM locomotives. It brings authentic locomotive audio and precise control to model trains, making it easy to add realistic sound and function responses to your engine.

Designed for easy installation with a 21-pin NEM connector, it features Reactive Dynamic Digital Exhaust that adjusts exhaust notes as throttle and load change, along with functioning brakes, injectors, power reverse, and firebox flicker. The sound library covers exhaust chuffs (10 variants), prime movers (up to 12), bells (12), whistles (90), air horns (40+), plus couplers and dynamos, enabling a highly customizable, lifelike locomotive on the layout.