Hearing Aids of all types—Ear Trumpets, Carbon Hearing Aids, Vacuum Tube Hearing Aids, Transistor Hearing Aids, Body Hearing Aids, Eyeglass Hearing Aids and much more!
"How shall [hard of hearing people] believe in [Jesus Christ] of whom they have not heard?
And how shall they hear without [hearing aids in order to hear] a
preacher."
(Romans 10:14)