Just bought the dual earphone H820e wireless model. It is very comfortable - I've been wearing it for hours. It's lighter than my other headphones, which adds to the comfort factor as well. Range in my office building is very good. I've moved all over the floor (several hundred people work on this floor, to give you an idea of size) and went in the bathroom, etc. No degradation with the audio connection. Music sounds fine, too. The Lync compatibility features are nice. Probably the only slight knock is that when I'm walking around I can hear a little bit of "jumping" in the audio. And it's not sound interference on the microphone - I've been walking around with that on mute. But this is only a minor annoyance. Overall it's a pretty good set with nice features, decent sound quality, fast recharge and long range connectivity.