the three in comparison are: The Jawbone ($120) www.jawbone.com this one apparently has a little nipple sensor that sits on your cheek. it senses the vibration of your voice and only broadcasts when you speak, cutting down on background noise. it's big and dumb looking. Samsung WEP410 ($110) www.samsung.com this one is small and apparently pretty clever, although it still makes you look like an idiot. Jabra JX10 ($179) www.jabra.com this one has a futuristic charging stand and is smaller than the jawbone. apparently it made the tester sound like a genius. regardless, you have to hang it on your ear to use it. not the most helpful i know... it was in Esquire enjoy your cyborg years.