“Difference between micro adapter and usb adapter aside from the size, is there any functional or feature differences between your Bluetooth USB Adapter RF-FLBTAD and the Micro Bluetooth adapter RF-MRBTAD ? I have Dell Latitude E6510, Windows 7, and a Plantronics Voyager Pro HD. My Dell BT stack is not recognizing the new headset and i was advised to get an external one to make it work. Thank you!”