Throat microphone

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 or law enforcement operations.

This is fastened below the larynx to produce a signal that is related to the vocal fold vibrations and the sound pressure in the trachea.

[3] Charles Edmond Prince led the development of throat microphones for the British during World War I for use in the noisy and windy environment of aircraft cockpits.

Over a 3 year period from 1915-1918 they went through a series of prototype and production handheld "airplane telephones" before arriving at a hands free throat mic incorporated into a leather flying helmet.

Newer single-transducer designs are available that make the throat microphone much more comfortable to wear than earlier units and also better balance transmission quality.

[10] During the COVID-19 pandemic, the higher rate of face mask usage led to throat mics becoming more common to facilitate communications.

Oxygen mask KM-34 for MiG pilots with a throat microphone
Throat microphone LA-5 (Soviet Union early 1980s), same model as above
A general-purpose throat mic used for two-way radio communications