Three Flange style forms proper seals to effectively filters out noise.
Reusable plug fits all.
Made from silicon material, which makes it breathable, Hygienic, non-toxic, non-allergic, washable.
Coded thread to keep plugs clean & handy.
Stronger case to keep plugs clean & handy.
Box can be attached to pant/trousers loops, Helmet.
EN 352-1 approval assures quality.
Excellent NRR (Noise Reducing Rate).