Someone should ask if the Icecrypt S3750CHD is UL certified since that seems to be important.

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I am not sure of what other models they have had since then besides the V8 models which when I checked them, they were not licensed for doing Dolby, USB, HDMI and were not UL Listed. One reason why they are sold for so cheap.
I wonder who he checked with about these licenses because Dolby, USB, and HDMI are embedded in the chip? Ask and you probably will not get an answer. Best to stick with the good points about what you are selling instead of trying to throw mud on other products that cost less money.