This is the 3rd Bluetooth headset I've owned in the last year and my second H700.  The last one I owned was a Version B and this one is a Version C.  95% of the time, I am very pleased with the headset - the sound quality is fantastic, everyone can hear me well and I can keep my phone a fair distance from the headset without issues (I use both a Blackberry 8703e and a Sanyo SCP-8400).  In fact, people are suprised when I tell them I am talking to them on a headset.