EXCELLENT NOISE REDUCTION : Noise Reduction Rating (NRR) 37dB of this ear plugs foam that can reduce most of the noise in our daily life,sleeping,travel,study,loud event,working.High-density memory foam will slowly return to its original shape in your ears,fill your ears to achieve the most powerful noise reduction.
SLOW REBOUND DESIGN : Rebound-it is mean the time that foam earplugs return to their original state,the longer the rebound time, the stronger the ability of the earbud to isolate the noise. Reusable plugs for sleeping are design of bullet streamline memory foam earplugs-60 seconds slow rebound.
COMFORT & SILKY SMOOTH : Ear plugs softs are made of environmentally friendly meterials-super low pressure and soft smooth,high density non-toxic PU foma to ensure the safty for long-term wear. Soft surface and slow rebound will greatly reduce the discomfort of your ears.
EASY TO STORE & CARRY : Box packed of 5 pairs in ear hearing protection plug,reusable after wiping with a damp cloth.For your convenience, there are also have one small single storage box in the package.When you go out to work or travel, just bring one or two pairs earplugs instead of a whole bottle.