What a fantastic little product! I parked this tiny dongle in a spare USB port and within seconds finally had a bluetooth enabled laptop. And all for £4.99. There are no instructions provided, but then none are really needed - at least with Windows 7. Simply plug in the dongle, and if your PC doesn't automatically recognise whatever device you are trying to communicate with via bluetooth, go to 'control panel, hardware & sound, devices & printers, add a bluetooth device' to do a manual search.