If you drive around all day bumping your gums with remote friends and colleagues, then you can't really get along with those more diminutive headsets on the market. That's where the fat and proud Voyager range from Plantronics comes in, with features like all-day battery life, a long boom, A2DP and an InstantMeeting app to connect you to conf calls on your iOS, Android or BlackBerry. The latest Voyager HD model is the first to contain sensors that detect proximity to your jowls and allow the device to re-route calls appropriately.
Engadget
See also:
gadgetsdaily, Plantronics Voyager HD headset knows when it's kissing your cheek