Material and design: 3 pairs of soft-touch silicone earplugs for sleep noise reduction. Made of super soft high-grade silicone material, unique design and super comfortable. It is very suitable for people sleeping on the side, and the waterproof design makes it very comfortable for you to sleep on the side. This helps you achieve deeper sleep (non-REM sleep). It is more suitable for people who are easily affected by noise. Wear it all night (or during the day if you work at night) . . The earplugs are comfortable and easy to use: the earplugs have a 30% increase in noise reduction effect, with a thickness of only 0.4mm, and an effective noise reduction of 40db. They can block noisy noises to protect hearing, eliminate interference when sleeping, and help focus when studying. Reduce stress and calm voice sensitivity. This allows you to relax by eliminating sharp or harsh noises, but still allows you to hear noises such as alarms. . Dual function: Waterproof earplugs have good noise reduction performance, which can isolate noise from construction sites, concerts or traffic, allowing you to have a better sleeping or learning environment with good waterproofness, earplugs can also protect you when swimming Ears (but please note that silicone earplugs are not recommended for outdoor swimming in hot weather). . Ultra-portable and reliable: The miniature size and convenient compact storage suitcase allow you to easily block unwanted sounds during the journey. Sleep, travel, study, super light, can be hung on the key ring. Whether it is windy, rainy or sunny, the earplugs are designed to be used in all weather conditions. . Washable and reusable: Wear it all day long, it can be reused, just clean it regularly with warm soapy water or alcohol gel and dry it naturally for later use. .