I bought this key wifi because my new laptop is not Bluetooth. When you see the price of this accessory, it is useless to spend between 100 and 200 more for the original Bluetooth computer. The configuration is very simple windows 7, I looked before it works. I think with win 7, one can spend driver CD supplied with. Once installed and configured the mobile (a bit complicated and fiddled with my nokia), file exchange between mobile and mobile is done quickly and well (photos, ringtones, no need to buy expensive rings if with nero lite (free), converting Mp3 and made extracts 25 seconds, my ringtones are envious and I do not have the same as everyone else). The interface of the Bluetooth software could be more friendly (small window and not very pretty) Once configured (once for all) it works very well.