To take full advantage of the WH63 Portable, you only need the Yealink DECT-Dongle WDD60. With the "Plug-and-Play“ - The WDD60 DECT dongle is an ideal companion when you're on the move, as its radio range is 3-5 times greater than that of a Bluetooth headset.. This way you can move away from the phone and still not miss a conversation. With the Yealink DECT dongle WDD60 you can be productive wherever you are, whether in the office, at home or on a business trip. Increase your flexibility and productivity with the Yealink DECT dongle WDD60.