I finally broke down and bought a bluetooth headset for my v710. Thought I'd like the boom on/off style so got the Moto 810. Doesn't work on my face - can't keep the speaker from rubbing and creating noise to listener. I guess if you have little ears and chipmunk cheeks, its not the choice! I'm not sure I'd like the Moto 820 either; would prefer something a little more sturdy on my ear. I noticed some very positive comments about the Sony HBH-300 bluetooth headset on HoFo but can't find anyone here mentioning it. Does anyone have info or comments on it? Thanks.