From Funktional Software:
vitaero is a software application that seamlessly connects a Bluetooth headset to SkypeTM on your PC so that you can manage your calls with the headset buttons. The software works with all popular Bluetooth headsets and it has been tested and certified by Skype. Just like a mobile phone - vitaero maintains a low-power connection to the headset to preserve battery life while not on a call and then automatically senses the need to switch on the audio - so you are talking through Skype with the touch of a button. No more wires. Now you don't have to be tied to your PC when making Internet phone calls. vitaero makes Skype wireless.