Plantronics 92900-01 Cordless PTT (Push-to-Talk) Headset Adapter, Black;

The CA12CD-S is a cordless PTT designed to provide encrypted communications for use in public safety dispatch and air traffic control. The CA12CD-S uses digital processing (DECT 6.0), and operates in the UPCS band (1.92 - 1.93 GHz) in North America. The CA12CD-S/A uses digital processing (DECT 6.0), and operates in the DECT band (1.88 - 1.90 GHz) in Europe. It features a Plantronics QD (Quick Disconnect) and is compatible with all "H" series headsets.