I'm returning the Jawbone after one day of torturous use. I liked the design and snug, comfortable fit. Performed awful -- muffled, tinny incoming sound and severe echo for those on the other end of the call. I used it with the LGVX8300. I have tried and owned many bluetooth headsets (Motorola, LG, NxZen, and Jabra) and the Jawbone was rates at the bottom.