Yes Ear: NS4000 (Duhkah Human Tech Earplugs)

Duhkah Human Tech Yes Ear NS4000 Earplug Perfect earplug finally available to surfers who are suffering from surfer's ear or want to avoid it! This is a great product to protect your ear from loud noises and/or the instrusion of water, foreign bodies, dust and/or excessive wind, while you can still hear human voice! Free from everyday noises! But it allows conmfortable hearing of conversation (It allows low frequency such as human conversation but shuts down high frequency band of everyday noises) 1. Comfortable "The ultimafum for softness" Because the thickest part of the wing is 0.4mm and the end of the wing is 0.02mm, it is very comfortable to wear (small and large adoptors are included. You can change, depending on the size of your ear canal. 2. Breathable "Breathing earplugs" A 0.8mm breathing hole in the inner part of earplug lessens pressure difference and minimizes alien substance feeling and dizziness (which other earplugs may cause). 3. "Human engineered structure body" Soft