Plantronics Discovery 665 - Headset ( convertible ) - wireless - Bluetooth 2.0
I bought this for use with Skype.  I'm using Windows 7 64bit on a laptop with a blue tooth adapter.  The headset would pair fine but that's it.  I could not change setting and no other program on my computer would recognize it for use.  Plantronic's forum offered no help, blaming the problem on Microsoft.  Many other users there had similar issues with their devices from Plantronics.  I will try another brand.