Received at the said date. For private bluetooth desktop computer, while I have a bluetooth headphones Philips, exactly. I launched the executable in administrator mode (W7-64). Then after installing drivers, I simply plugged the "dongle" on USB port. Good drivers are then installed perfectly alone, and old. I turned on my bluetooth headset, I put in recognition mode. Then started the matching program in the taskbar at the bottom right tasks (CSR Bluetooth icon driver). I then immediately able to listen to music, to a level of great value (even better, I think, with my wired connection on sound card output!). The idea was, for me, using my BT headset to my office, hence the fact that the scope is to me less important. I am still a little distant, to test: it works well up to 7-8 meters without obstacle. Beyond, or with an obstacle, then it is sure that there are cuts, but it still did this to me in LV ... So in summary, good small stuff, which makes the job perfectly is expected of him and that's fine. For the price, go for it, there's nothing to regret, on the contrary.