Got mine yesterday, think was a shade under £18 from ebay. Had a quick test last night, paired straight away. Tiny bit of hiss in the background, not sure that will be noticeable though. Does suddenly feedback quite badly if the mic gets near the aker, so hoping that there is a big enough distance when suited up. My TK kit isn't ready for another 2 weeks, so have some waiting to do before i can test fully suited.
Will try it with my Kylo costume too!