By effectively against NO driver supplied. For users of Windows XP it will go qques hours on the web looking for a way to get the BlueSoleil software.
The software seems to be the only way to run the dongle on WinXP (SP3). The software interface is a PURE SHIT. Frankly, a catamaran. But it works. So who satisfied!
I now use Windows 8 and Ubuntu 12.04 and was recognized directly without any installation or anything and I'm using my headset HM1000 with worry.
2-3 euros, I am quite satisfied with my purchase!
However Warning: bluetooth remains rotten in terms of sound quality, let's be frank. But it's not just the dongle is BT rates that are just too small.
Level range: count 2 meters around for an acceptable quality beyond it will not work more too.