A speaking trumpet (ear-trumpet) was an instrument formerly used prior to the invention of the electronic hearing-aid for concentrating and magnifying the sound waves of the human voice. The speaking trumpet was probably invented by Sir Samuel Morland during the 17th century. At one time speaking trumpets were widely used on board ships, but by the...
[n] - a trumpet-shaped acoustic device to intensify and direct the human voice
noun a trumpet-shaped acoustic device to intensify and direct the human voice; formerly held to the ear by a hard-of-hearing person