Considering that these headphones rest on your ears they are amazingly heavy. I've worn them for about an hour and had to take them off because my ears hurt. Its a different kind of pain from the S9, which I also have. The S9s pinched the head and the HT820s just place a lot of pressure on the ears in the crook where they sit.That being said I will figure out a way to make them work since the sound is pretty good. I use them at work where I need to not have cords in the way so I only use them for music playback and can't speak to the microphone on them.The play\pause function as well as the forward and back buttons do not work in iTunes on Windows 7 64-bit. The volume does, though.All in all I'd say meh. Glad I didn't pay full price for them.