mindshot

noun

1. (uncountable)The range within which one person can telepathically hear another's thoughts.

   “That's the thing about telepathic conversations: You never quite know how far your “voice” will carry, or if someone else is within earshot—I mean mindshot—or if you're “speaking”— braintalking?—too loud or too quiet.”

   ““Well,” he said, when the armless Haydonite had hovered into mindshot, “what do you think?” He heard a bellike ^([sic]) sound in his mind before Veidt's short telepathic statement took shape.”