My Hero Academia has finally revealed one of the big secrets of its pro hero operatives: how they stay in communication with one another on the battlefield! The events of My Hero Academia have shown us that pro heroes use in-ear communications while in the field, but now we are finally getting the inside scoop as to how these heroes’ comm devices work! It’s a small detail to be sure, but an important one for hardcore fans, who love to pick apart such details. Check out the official breakdown of My Hero Academia’s pro hero communications devices, below!

“The Earpiece” – HNKS-425M 

All Heroes are equipped with these micro earpieces," the diagram explains. “When someone puts a hand to their ear and speaks, that’s what they’re using. The earpiece stays in there, right near the ear canal, and since it isn’t visible, that means no extra work to draw it!!

Mr. Skeptic (Chikazoku) stuck a bunch of micro devices on Hawks, and these are about the same size while boasting high performance!! One can switch between the main channel, group channels, or personal channels. 

“The Earpiece"Manga: My Hero Academia [v27 Extra] pic.twitter.com/BUVQbCAYCR