Some are speculating that Clinton’s lectern was set up to be used like a walker to stabilize her.
They were both wearing lapel mics, you just have to look close to see the one Trump was wearing.
Preachin’ had a good point, could be one for the TV feed, one for the house PA.
Whatever the case, they each had a lapel mic, I checked it last night when I saw hers. That’s why I never asked about it, I knew it was a nothingburger.