You can swell your throat to amplify and broadcast your vocalizations over vast distances.
Prerequisite(s): Boggard, terrifying croak.
Benefit(s): The range of your terrifying croak ability increases by 5 feet for every 2 Hit Dice you have (maximum 30-foot increase). While speaking Boggard or wordlessly vocalizing, you can swell your throat pouch as a free action to reduce the Perception DC needed to hear your voice by an amount equal to your Hit Dice.
Special: The benefits of Throat Pouch and any feats that use it as a prerequisite are available only while you’re wearing light, medium, or no armor.
Pathfinder Roleplaying Game Monster Codex © 2014, Paizo Inc.; Authors: Dennis Baker, Jesse Benner, Logan Bonner, Jason Bulmahn, Ross Byers, John Compton, Robert N. Emerson, Jonathan H. Keith, Dale C. McCoy, Jr., Mark Moreland, Tom Phillips, Stephen Radney-MacFarland, Sean K Reynolds, Thomas M. Reid, Patrick Renie, Mark Seifter, Tork Shaw, Neil Spicer, Owen K.C. Stephens, and Russ Taylor.