Sound files can be loaded to the decoder, simply note the S0 file number in the box on the product page. A LokProgrammer can be purchased separately, however that it is not necessarily required as decoders can be purchased with sound files ...
Reviews
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I am very pleased with this product.
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RICKEY · February 3, 2026
ESU LokSound Decoders are great!
ESU products and team are great! Easy to work with and they support you if you need help.
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Rachel · January 10, 2026
Great locomotive decoder for a great price
This is a great product. ESU created a very nice deco which has so many features. It comes with 4AUX cables/Physical outputs already installed. This is on top of the regular forward and reverse lights. The sound files are great, very clear And joy to listen to. Fusion hobby did a great job of Programming the decoder for me with the customized sound file for my locomotive. Shipping was fast and carefully packaged. A great hobby shop.