I had 2 voyager 510s, first one people heard me better than on the phone itself, second one, people couldn't hear me all that well.. changed a few phones in between too, few OSs, nothing... not sure why. it's still better than the 2 other headsets i've tried, a jabra and a motorolla. (forget model numbers for now)
as for my next headset, it'll be this thing:
http://www.thinkgeek.com/gadgets/cellphone/8928/
