Those ear muff types with the knobs that are supposed to shut off loud noises, and amplify normal volume sounds, like conversation,,,,,.
Do those REALLY WORK ? Or are they of doubtful value?
I've tried a couple of the cheapy models and they DON'T work even enough to notice a difference.
I am, therefore reluctant to spend the big bucks it takes for the expensive ones.
Whatever you know about this, or your thoughts will be appreciated.
Smitty of the North