Human Echolocation: A Story of Hidden Senses
Human echolocation - Daniel Kish, "Batman" - YouTube
Human echolocation - Daniel Kish, "Batman"
How Human Echolocation Allows People to See Without Using Their Eyes | Surprising Science
Human echolocation lets blind man 'see', via YouTube.
Daniel Kish is blind, but has taught himself to navigate using a form of sonar.
Patent US7957224 - Human echolocation system - Google Patents
Neural Correlates of Natural Human Echolocation in Early and Late Blind Echolocation Experts