Already for plug into a USB port, you need to get a tamper contact, putting a little crooked and not quite down, it works. Once connected, the installation (random enough) is done with the driver downloaded from the manufacturer site. Then a bit of a chore to find the phone, but eventually it works. Impeccable data transfer. In addition, to use a rather transparent, there is the BleuSoleil software (fee) to visualize the devices detected nearby. I bought this product to use a bluetooth headset on my computer (a Jabra Halo 2) but it is incompatible A2DP dongle. So no sound, so will finish at the bottom of a drawer, away from light.