Human echolocation is the ability of humans to detect objects in their environment by sensing echoes from those objects, by actively creating sounds: for example, by tapping their canes, lightly stomping their foot, snapping their fingers, or making clicking noises with their mouths.

How do I train myself to use echolocation?

To master the art of echolocation, all you have to do is learn to make special clicks with your tongue and palate, and then learn to recognize slight changes in the way the clicks sound depending on what objects are nearby.

How good is human echolocation?

“Most of the blind perform fairly well within two meters and can guess what the object is,” Dr. Schenkman said. “It's astonishing how good some people can be.” Human echolocation can be so accurate that, in some cases, people can even tell whether the surface of an object is rough or smooth, reflective or absorbent.