Easy to Carry : Each set of earbuds for sleeping comes with a compact keychain travel case, convenient carrying and saving at anywhere. Screwed sealing ensures hearing protection earplugs from moisture, dust and debris, keeps your earplugs hygienic. Multi Purpose : Recommended applications include studying, sleeping, shooting, flying, concerts, motorcycle,sports events, fireworks display, woodworking, vacuuming, mowing, drilling and all noisy environments. Noise cancellation : Noise cancelling ear plugs carry 38dB SNR, competent to block out loud noises for hearing protection, shut out distractions when sleeping and aid concentration when studying. Serene experience wherever you may go. ( Not Completely Sound Insulation). Practical : The package comes with 60 pairs of sleeping ear plugs, with the reusable 2-3 times, and enough for your whole family to use. These ear plugs for sleeping noise cancelling can be used to replace the old one or use as a backup, can protect your hearing for a long time. Hypoallergenic: This industrial ear plugs quality, non-toxic, Hypoallergic and Soft, Wearing for a long time, the ears will not cause pressure, pain, irritation or itching, While providing you with the required noise reduction effect, it also protects sensitive ears!. Soft & Comfortable & Easy Fit : This sleep ear plugs made from non-toxic PU material, the light, dense, Soft, and tapered foam earplug ensures all-day comfort and protection in a wide range of working environments. 45s slow rebound, enough for you to set the earplugs, gently fill the ear canal, allowing them to seal gently and snugly without pressure.