We are pleased to offer the excellent ESU LokSound sound decoders, inluding LokSound 5 DCC 21MTC NEM660, 8 pin NEM652, Micro Next18, L & XL DCC. The excellent features of ESU-decoders are even more enhanced by the addition of sound functions. Thats made possible through the award-winning LokSound technology. When you order a LokSound decoder, request the specific sound file that you would like downloaded to the decoder. Lists of sound files are found at http://www.esu.eu/en/downloads/sounds/loksound-select/loksound-select-usa/ . Also avaliable are a limited number of "V4.0", "Micro 4.0" , the "Select", "Select Direct" and "Micro Select" model decoders.