i have used ESP (Electronic Shooting Protection) plugs for several years now. evidently started too late as my ears ring something horrible. upgraded from analog to digital. excellent but pricey. Put them in and forget about them.
my teenage boys have used the Walker game ear quad muffs since...
have worn ESP for years. upgraded from analog to digital a couple of years ago. my two young sons, hunting for 4 yrs, have never shot a gun without their electronic muffs on.