Calmer features a unique technology that reduces distortion in our ears and calms your environment in a subtle

Besides that

Twin headband design helps reduce heat build-up

and you want to be able to listen to your own music player

Bright green swirled colors makes for winning compliance to your hearing protection program

ISOtunes Replacement Triple Flange Silicone Tips (5 pairs) upsell_copy-of-macks-slim-fit-smaller-soft-foam-ear-plugs-nrr-29-50-pairs Calmer features a unique technologyISOtunes Triple Flange Silcome Replacement Eartips offer comfort for non protective use. Replacement Eartips are sold as individual packs that include five pairs of eartips. For regular users, ISOtunes recommends replacing each pair of eartips every 1 3 months depending on the frequency of use.