Synonyms for hearing aid

Poli shook his head an angry no and reached to turn off his hearing aid.

Only after the librarian had rummaged a hearing aid out of his clothes, did Jason realize he was deaf as well.

Switching on his hearing aid, the Pyrran stood quietly, crippled and bent, waiting for Jason to talk.

The hearing aid symbolized what Hurd had been told about it, as opposed to the reality which he saw with his own eyes.