Nick looked at Sandra who had placed the material strip around her neck and the ear piece into her ear
“Place the tech against your voice box, you only need to sub-vocalise and the tech in the material picks up the vibration that the voice box makes when you speak normally and via the box transmit it to all people on the frequency and in the 3 mile range. The ear piece when the system is on removes the air from your ear and then via the piece behind your ear vibrates the responses to the bones of your inner ear.