I have a set of Howard Leigh’s and a set of walkers With Bluetooth. Both muffs. I have heard deer walking in pine straw that I wouldn’t have heard without them. They do amplify sound well, as I learned one duck opener as I was siting in my tree a mile from the river. When those boys opened up it sounded like I was right on top of them. Just far enough away that they amplified the shots instead of suppressing them.