Earplugs for Sleep, 3-Layer Soundproofing Silicone Earplugs, Noise Reduction Rating 33dB, for Airplane, Work, Study, Washable, Reusable, Hearing Protection, Black Latest Design Special Shape Earplugs, Comfortable to Wear, Innovative Design Based on Ergonomics, Developed to Fit the Outer Ear Canal of Japanese People, With a Curved Special Shape, It Fits the Shape of the Outer Ear Canal, Fits the Ear Well, and Does Not Fall Out Even When Worn During Sleep. Environmentally Friendly, Non-Toxic Liquid Silicone Material is Used, and It is Extremely Flexible. Even After Wearing it for a Long Time, Your Ears Will Not Hurt. Designed for Japanese People, the Size of the Earplugs Fits the Ear Canal of Japanese People Better Than Other Earplugs, Naturally Fits and Feels Less Uncomfortable. The Upper Hollow Design Exhibits Good Breathability, and There is No Unpleasant Feeling of Stuffy Ears. Breathability is Also Good. 17% of People Have Hearing Loss Due to Noise. The Filter Developed for Earplugs Has an Excellent Function of Adjusting the Volume of Environmental Noise. By Wearing Earplugs, You Can Reduce the Sound by Approximately 33dB. According to OSHA Standards, Completely Soundproof Earplugs Cannot Be Used, and Alarms Cannot Be Heard in the Event of Disasters Such as Earthquakes. For Details, Please Visit the OSHA Website at Any Time. (If You Want Completely Soundproof Earplugs, Please Buy Carefully.) Wide Range of Applications】 Noise Reduction Rating 23-33dB, Excellent Noise Reduction Performance, Applicable to a Wide Range of Places. Very Suitable for Use at Home, Hotels, Campsites, Airplanes, etc. During Sleep, Work, Study, Meditation, etc. It is Also Useful When Traveling Long Distances Such as Trains and Long-Distance Buses. Please Use it When You Feel Uncomfortable in Noisy Environments Such as Live Concerts, Parties, Clubs, Sporting Events, Fireworks Displays, Shooting, and Construction Sites. Easy to Use: 1. Clean Your Ears Before Using the Earplugs. 2. Slowly Insert the Earplugs into Your Ears and Bring Them Close to Your Ears So That the Earplugs and Ears Can Work Effectively (As Long as Your Ears Are Comfortable). 3. Cleaning the Earplugs: Earplugs Can Be Washed with Clean Water. Do Not Use Detergent. 4. After Cleaning the Earplugs, Assemble Them After the Earplugs Have Dried Naturally, and Assemble Them Properly to Achieve the Best Effect.