If you do your research you will find hearing differs from person to person and because of this, it may have a serious impact on flat signature headsets. Idk why amazon isn?t letting me submit pictures for the last few reviews. I included pictures of the rack as I opened it up. Holy cow. the only good part about this product is the strong little carabiner it comes with. - The have an equalizer which lets you adjust bass, mids, highs, etc. I bought 4 pair. Update the second pair purchased broke after wearing a second time! It?s durable and I will definitely recommend you to buy. it also dont help remove odors like the description says.