I've had my earpiece for almost a year now.
My Jabra JX10 has attracted comment on several occasions because of it's small size. It's very lightweight and comfortable to the point where you can and do forget that it's even there (I've even fallen asleep with it on).
The sound quality is excellent. I've had no complaints about background noise or interferance at all.
Pairs quickly & easily with everything I've ever tried to connect it to. PC, Laptop & assorted mobiles.
It takes an hour or so to charge fully from dead flat and after a year of daily use still provides a solid 5-6 hours of talktime per charge.
Since I picked mine up for a bargain price here at Play. I have no complaints about this nice little piece of kit at all. I'd happily pay RRP to replace it.