I'm actually not a review writer, but in this case I make an exception because I have not yet received an important for me information in the previous reviews and I want to pass this information to others. This Bluethooth Dongle I can easily use multiple Blueetooth devices simultaneously. Headphones, mouse and cell phone all run simultaneously without problems. Device plugged in, powered up computer has automatically installed on Windows 7 and running properly. Only the supplied software does not really work on Windows 7, just like in other operating systems, I do not know. But as I said, the dongle works fine even without software and therefore is not a problem. The range is ok, but far from 100 m. But that is perhaps at the reception strength of my headphones. I give anyway an unlimited buying recommendation for this device, as I have ordered the same safety another Bluetooth dongle and is not even recognized by my computer.