Haven't used that one, I have the old style Action Ear. My wife bought it for me 15 years ago still works. As far as cutting off the noise YES, System shuts down at 110 decibels. I understand the newer models cut off sooner. The one I have is not the kind you wear while walking through the woods, too cumbersome. But it sure is nice on a tree stand, or sitting in a blind. Also nice when you shoot, the noise is shut off. If you shoot a gun with a muzzle brake you either need something like this or wear earplugs.
