I watched the interview until I could see her boots a bit more clearly. In all reality, I believe it is the receiver for her microphone that you can see attached to her left side shirt and sweater area. Typically they are attached to the backside of the person wearing the microphone. This doesn't seem to be thecae with her, as she leaseback comfortably in the chair. Harry on the other hand, wears a small microphone but does not ever lean back inches chair. He sits forward at a slight angle.