If you're not in the know, echolocation is specifically the sonar-like phenomenon of bouncing soundwaves off of one's surroundings and using their reflections' return speed to figure out what's around them. Clickers' ability to find prey should have nothing to do with how loud it is, only how corporeal and human-shaped.

I know it's nitpicky, but the fact that everyone in the game refers to it specifically as \"echolocation\" suggests to me that nobody understands that word. Clearly the post-apocalypse education system has failed along with the rest of society.