ugly and 2x the size. I am all for Mozilla getting into new tech lately, but they really need to hire a decent design team.
If I had to guess, that device looks like one of the many "Android TV sticks" that are sold on Ebay and the like. I didn't see one that looked exactly like it, but it's the right cheap plastic and dimensions.
If I had to guess, I'd say an engineer bought this and decided to port FirefoxOS to it -- not something that went through any sort of design team.