Feature:1. Special Sound Filter: The earbuds come with special sound filters that help eliminate ambient background noise without completely blocking your ears, so you can still hear your alarm clock and other important sounds.2. Two Layer Umbrella Structure: The earplug adopts a two layer umbrella structure, which can attenuate the impact of sound waves on the eardrum twice, and can better fit the ear canal. It is suitable for people with different ear canal sizes.3. Soft And Comfortable: Hypoallergenic silicone material, extremely soft and comfortable, each pair of earplugs weighs only 1.6 grams, which reduces the pressure on the ear canal to a greater extent and is suitable for long term wear.4. Reusable: The earplug silicone material has good water repellency, can be used after washing and drying, it is hygienic and convenient, and the service life can up to 23 years.5. Portable Storage Box: Each pair of earplugs is equipped with an independent storage box for easy portability. There are ventilation holes on both sides of the folding pages of the storage box. After washing, the earplugs can be directly put in to keep them ventilated and dry.Specification:Item Type: Sleeping Ear PlugsMaterial: SiliconeProduct Size: Approx. Earplug Length: 20mm / 0.8inWeight: Approx.48g / 1.7oz.Package List:1 x User Manual1 x Earplugs Wearing Aids1 x Pair Earplugs2 x White Filter1 x Storage Box