ear trumpets

quack

3/4grilleearside
earpiece material
image of ear trumpet
wood
image of ear trumpet
metal
image of ear trumpet
plastic
image of ear trumpet
bakelite

I have used this term to apply to items that were sold to improve hearing but were absolutely useless.

Also include are 2 items intended to deceive the unwary buyer on Ebay.

The battery powered noise maker was supposed to exercise one's hearing !
4 examples