 uh... i don't know i i think sometimes they they have a patent for them where they could take notes on what you know the uh... opponent is saying so they can address it when they respond uh... but i know they weren't able to to speak air physically contact any other aids or anything like that uh... but yet my biggest concern was seeing joe biden's that the looks on his face he just didn't look well he looked scared like a little kid that was yelled at many times it just look like he was going through both physical and emotional problems throughout the whole thing