I have those and to be honest they are touch and go in Windows 8 and onwards because of the abysmal driver support from Plantronics. The Mic would not work on my PC at all (Windows 8.1) once I got a USB 3 front port plugged into my motherboard (Worked fine before then and no matter what I did, even plugging it into a USB2.0 port -Still no microphone) and I ended up getting the
Razr Kraken Chroma instead. Which work perfectly on the same PC...
Weird thing is my Plantronics work fine on my Son's PC using the same version of windows just fine.
I know it took Plantronics months for them to fix the Windows 8.1 drivers and you could only get the beta's by PMing the Tech guy in the Forum for a while which was bloody stupid.
When Windows 10 comes out next month I fully expect them to be dead in the water.. Shame really as they are a really good set of headphones fro the price.