Wiktionary
n. A laryngophone.
Wikipedia
A throat microphone, also laryngophone, is a type of contact microphone that absorbs vibrations directly from the wearer's throat by way of single or dual sensors worn against the neck. The sensors, called transducers, can pick up speech even in extremely noisy or windy environments such as on a motorcycle, or in a nightclub. Other types of microphones do not function well under these conditions because of high levels of background noise. Advanced laryngophones are able to pick up whispers, and therefore perform well in environments where communicating with others at a distance in silence is required, such as during covert military operations. Throat microphones are also very useful when helmets or respiratory protection is required. Many full-face SCBA, CABA, SAR respirator, PAPR or re-breather masks do not have a provision for a microphone inside the mask. The throat microphone can be used safely, as it is positioned outside the mask's face seal and as such does not compromise the respiratory protection provided by the mask, nor does it violate mask approvals and certification.
Usage examples of "throat microphone".
As soon as the short helical antenna clamped to the side of his head broke surface, he spoke into the throat microphone.
He wore a throat microphone for sending out messages, and for receiving calls had a thin silver wire running to the vibrating bone in his ear.
The throat microphone gave a peculiarly dead quality to the broadcast.
He shot out a hand, the hand seized the throat microphone around Captain Lewis neck, jerked it loose.
They heard Cleary's voice carrying on a one-sided conversation with the saviors of the mission, who carried no radios and whose words could not be heard intelligibly over Cleary's throat microphone.
She put one on herself, peeling the plastic backing from the self-adhesive throat microphone and smoothing it into place on her sunburnt neck.