TCI’s Liberator® II tactical headsets with boom microphone provides an exceptional convergence of communications and hearing protection and was originally designed to military durability standards.   Liberator II™ headsets offer low-profile ear-cups for compatibility with various tactical helmets, state of the art digital sound processing for optimal reproduction of environmental sounds and leading radio frequency (RF) shielding. Patented Digital Threat Compression Technology (DTCT) safely reduces hazardous ambient sounds while simultaneously providing the user with continuous situational awareness.  See features below for more information.