For projecting voice through the restrictions of an SCBA or full face respirator, choose the SAC Microphone. The SAC Mic sticks to the hard lens of any mask, picks up and transmits voice vibrations. SAC Mic minimizes external noise sources, providing clear communications even under hostile conditions.
The TL-4B, In-The-Ear Listening Device, combines with either Earmark's Throat Microphone or SAC Microphone to give you the best package for SCBA's and respirators. Comes with an ear hook and noise reducing ear plugs.