I have significant hearing loss due to a unique disease and compounded by lots of unprotected shooting. I use Tetras and love them. I've tried almost all other options before them and none were great for hunting. Get a real hearing test if you order them, don't rely on their online test. As stated above, talk to your audiologist/doctor because there are hearing issues that they cannot overcome. For me, the constant ringing in my ears block sounds that I may be able to hear and the Tetras make my ringing stop while wearing them and for several hours after I take them out. I can hear drumming and subtle hen talk that I cannot hear without them. I had great customer service from Tetra, but may not always be the case. My only regret is I did not get the custom fit models. These block a lot of shot noise, 70-80%, but the customs block all of it. I do not run mine on magnum level and they do not affect my calling using the lower levels. They also filter out wind and road noise that walkers and others make louder. I can wear them under a full mask or cap without getting feedback or fabric noise when turning my head that others pick up.