I've been seeking a good stereo headset for my phone and one for my PC. I've been using a corded one for my PC and Sony BlueTooth one for the phone, I have now replaced both of these with the H800. These stay at my desk and not for acrrying about with me. What I like :

Clear sound for both headphones (media / in-call and microphone)
Standard Micro USB charger (although only a USB / Micro USB cable supplied, not a wall socket)
Tiny USB dongle with firmware paring (similar Unify dongle for their keyboards)
A physical switch between off/bluetooth/dongle
No flashing lights
Range (can actually go 10M away from the phone)
They can be folded

I've been through an array of devices and this is the first I've been willing to say is good.