Received my ear plugs in perfect packaging and ready for use. First time out of the package was for use at a Whitesnake/ Foreigner Concert. A stage set is meant for Hi Fi and the pleasure of the crowd. The huge treble and bass were pounding and my new Etomyic ear plugs were a great fit. They dampened the pounding pulse of the stage performance. I could still hear the band and my wife clearly. Just with out the ear numbing force of our favorite bands. Just enough ear protection to dampen the thud and just enough to enjoy the full effects of a wonderful show. Thanks!