They work pretty well too I had a hang up at first while calibrating all of my devices because the signals were being cross when I would issue commands from the headphones while testing but after a few days of experimenting everything is working fine.
This things are a lot clearer than those $20.00 Sony's I had connected to my desktop and I bring them to work too so I can jam at the office using my iPhone.
I PRAY TO GOD I DON'T LOSE THESE or the USB charging cable.
Some reviews.. Not sure what kind of problem the third guy is having because they auto connect just fine.... some times too fine.
Again I'm in the process of just making things simple PC wise in my home... out goes the big bulk for smaller more efficent streamline like set ups so if this is for you check em out.