Benefit: You may reduce your bomb damage by one die to give it the ability to deafen the creature struck by it. The bomb must deal fire, force, or sonic damage. If a creature takes a direct hit from your bomb, it must make a saving throw against the bomb’s DC or be deafened for 1 minute. This deafening is in addition to any other effects the bomb would normally have.
Pathfinder Roleplaying Game Advanced Race Guide © 2012, Paizo Publishing, LLC; Authors: Dennis Baker, Jesse Benner, Benjamin Bruck, Jason Bulmahn, Adam Daigle, Jim Groves, Tim Hitchcock, Hal MacLean, Jason Nelson, Stephen Radney-MacFarland, Owen K.C. Stephens, Todd Stewart, and Russ Taylor.