Bluetooth Headset


In Runtime
I am getting a bluetooth headset for my cell phone here in the next few weeks. What I was wondering is would I also be able to use that headset as a PC headset for games and other stuff. I figure I will have to buy a bluetooth adapter to plug into one of my USB slots, but I am wanting to make sure that the headset itself will be able to be configured to two different things (cell phone and PC.) Thanks for the help.