Originally Posted by RedBlueWonder
They were talking to each other without any ear pieces and they were some distance from each other...
LOL, that's not a plot hole. It's apparently just their own damn fault for assuming we'd
be able to assume that the earpieces a spy agency like SHIELD uses in that super high tech, futuristic world are, ya know, covert (aka, invisible) earpieces. Which exist in real life and are literally designed to be hidden from view. Kinda the point. And I would imagine in the sci-fi world of the MCU, such a simple real-life spy tool would be easily perfected, so we wouldn't
see them...unless we got a gigantic close-up of the inside of someone's ear. Which is why "spy-fi" movies/shows use that invisible earpiece device (pun intended) all the time. Because it's a given that the earpieces are that
small/camouflaged, or even implanted somewhere (remember the "tooth radios" in Get Smart
like pretty much any CBM, is not without it's plot/logic holes, but invisible earpieces ain't one of 'em.