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 typically includes a dedicated microphone, an electronic amplifier, and a loudspeaker. Assemblies with special adaptors that are intended for use with an artificial larynx, a transoesophageal puncture tube, and/or other prostheses or implants are available. Some amplifiers are available as an integral part of an artificial larynx.