Originally posted by Paul Dirac IITo say nothing of the 19th century version, a big horn. Of course that one never ran down the batteries either
My grandmother had to have one back when they were about the size of a mouse. Good to know they are getting smaller.
Around 1970 the classroom teacher brought in an elderly man to show us his hearing aid. He was proud of it, but it was mighty klutzy by today's standards. I seem to remember it was on a strap around his neck or waist, with a cable going up to earphones.