I'm very pleased with the Jabra bt500v. I have some frequency loss in my right ear and voices come through clearly. This is not the case with many of the others. No one I've called has noticed any difference between my using it or, not using it. It pared quickly and easily with my Blackberry 8700c, which is carried within a leather holster on my belt. In terms of comfort, I hardly know it's there. I don't give 5 stars often but the JABRA has earned them.