Optimal Protection Against NoiseEarplugs reduce noise by 30 to 35 dB. It can effectively reduce noise and protect your hearing during concerts, sleeping, riding a motorcycle, working, studying, etc. The earplugs make you more focused and more enjoyable when using.Reusable Silicone EarplugsThe earplugs are made of soft, skin-friendly silicone, which is not easily allergic and is comfortable to wear. After use, they can be cleaned in water or wiped with alcohol, which is environmentally friendly and hygienic.Suitable for Side Sleepers Thanks to the ergonomic design, you will not feel uncomfortable while wearing the earplugs and they will not slip into your ears. You can sleep well all night. The user-friendly design does not damage your ears and avoids the risk of hearing loss and ear infections caused by long-term wearing.Notes Noise-canceling earplugs cannot isolate sound 100%. . It is normal to hear subtle noises during sleep.