For more information check out threat4.com.
Specs:
-Certified 32dB-39dB Noise Protection (NRS)
-True 360° Situational Awareness/Sound Localization
-No Programming & No Software
-Works Out Of The Box
-Lowest Comparable Price
-Ruggedized Lightweight Aluminum Body
-Optional Gas Mask Connection Port
-Conforms with OSHA and Army Hearing Program regulations
-MIL-STD-810F
