Definitions:

1. A conical acoustic device formerly used to direct sound to the ear of a hearing-impaired person. NOUN
   • In the old days, people with hearing impairments often used ear trumpets to amplify sound.
2. A trumpet-shaped device formerly used as a hearing aid in the 18th and 19th centuries by people with hearing impairment, and they came in various shapes and sizes. NOUN
   • The invention of the ear trumpet marked a significant improvement in hearing aid technology, offering relief to those struggling with hearing loss.

Synonyms:

• auditory cone
• hearing aid
• hearing horn
• listening cone
• sound funnel