I spent much of yesterday evening, trying to get a Sonoff inline, USB switch connected to Alexa. I tried a variety of sets of instructions, poor, multi-language ones, included with it, several on Youtube, and others I managed to find. Eventually, with lots of trial and error, one method worked, but I'm not even sure which one - I was so weary of the trial and error, plus trying to type on a small Iphone screen.
The process generally seems to be one of download an App, then set the device in pairing mode, where it shows up as a wifi access point. Then it simply needs configuring to access your home wifi - except, it was at this point ever method I tried, failed, except the last method.
Isn't there an easier way?