Some have speculated its the medical device outlined above. I have no first hand knowledge, but I rule nothing out with the Clintons.
She sure looked strange when she was looking at Donald when he was talking. Almost like she was in a trance, and the Joker smile scared our dog out of the room :):):)
Given what I consider Hillary’s serious medical condition,It could have been some sort of medical equipment as my sister in law, who has been very ill, had such a contraption on her back, a bit bigger but there is no reason for it to be concealed in her case, that injected antibiotics automatically into her arm at set times, 24/7. But that does not mean that Hillary wasn’t also wearing an earpiece, and the wire going up to her head/hair was the earpiece, and not part of what I belive was her necessary medical contraption. Other than what I believe to be her criminal capacity, Hillary is not well enough to do the job, and I doubt seriously she has 4 years left in her. It’s her “cabal” who will run the show if she gets in!