The PhoneArena team posted an article called Counterfeit Headsets - How to recognize and avoid them; what are the differences?
I immediately checked my Jabra JX10 and guess what — yep. it’s fake. What a bummer; at least this explains why I was having performance issues with the headset.
Mario Seijo
web designer
www.openElements.info
Mario Seijo is a web designer and creative director for a Seattle-based web design studio, 
the perfect excuse, I mean reason, to start looking at the new Jawbone headset. it looks really cool. very minimalist in style, and has the noise canceling function.
hi, I’m very interested in talking with you about the fake bluetooth headsets. Could you please tell me where you purchased your fake Jabra?
I got it from Ebay. My first attempt was to buy it from a seller in China, but they never shipped it and I ended up disputing the charge after waiting for 2 weeks.
My second attempt, was to buy the item from a seller in the U.S. The cost was higher than the ones from China, but I thought what the heck.
no more…
did you get stuck with a fake one also?