Designed by audiologists, SureFire’s EarPro Sonic Defender line of hearing protection offers patented ring lock technology and with its industry leading filtered protection, workers today can maintain situational awareness, converse face to face and be protected from flight line noises. In addition, the world’s first Universal Acoustic Coupler (UAC) integrates any handheld radio while taking advantage Surefire’s patented protections. For more information, visit or call (800) 828-8809.