A battery-powered, speech-assistive device worn on the throat and designed to magnify vibrations which emanate from the throat region when the wearer is speaking to increase the volume of speech. It is an electroacoustic transducer by which electrical signa...
An assembly of battery-powered, personal-worn, devices designed to amplify the loudness of the voice of a person with reduced vocal capacity (e.g., due to impairment of throat or chest muscles, partial paralysis of vocal cords, diminished lung capacity). It...