You are able to emulate the echolocation techniques of bats.
Benefit(s): By spending a move action to make a sound and listen for the echoes, you gain blindsense 30 feet until the end of your turn. Using this feat requires making audible sounds that impose a –4 penalty on your Stealth checks.
Special: This feat cannot be used if you are deafened or unable to make noise, and you cannot detect anything in areas that are magically silenced.
Pathfinder Player Companion: Heroes of the Darklands © 2017, Paizo Inc.; Authors: Robert Brookes, Eleanor Ferron, Michelle Jones, Alex Riggs, and Nicholas Wasko.