Soundtraxx 881106 Econami UK Steam 4fn 1A 16 Bit 21 Pin Sound Decoder ECO-21PNEM Digital Sound Decoders This 1-amp digital sound decoder simply plugs into models equipped with an NEM-supported 21-pin socket. Dimensions: 30.5 x 15.5 x 6.55mm Max. Motor Stall Current: 1A Function Outputs: 6 Max. Function Current: 100mA (each output) Audio Amplifier: 2W, 8-Ohm Load DCC Track Voltage: 7.5V äóñ 22V The SoundTraxx Econami UK Stem 4 function 1A and 16 bit sound Decoder. Steam Sound Effects include 5 Unique UK Specific exhaust chuffs that can be set to 2 cylinder, 3 cylinder and articulated. The powerful decoder is packed with 16 never before released whistles for both shunting and road work, vacuum pumps and air compressors, cylinder cocks, blowdown, blower, buffer plates, guard whistle with coach doors, brake squeal and more.