Product InformationName: BNRU Multi-Layer Noise EarplugMaterial: Nano silica gel material+ Memory spongeSize: 17mm* 14mmColors: Black White Blue PinkInclude: Nano silica gel + slow rebound sponge + shark fin tail filterPackage: 1 pair of earplugs2 layers of silicone8 sponge replacementsColors box and stroage boxFeature1.Human cochlea structure design, fits the auricle to prevent shedding2.Nano silica gel + slow rebound earplugs, 2 different noise reduction methods3. Filter+ soft elastomer + sponge earplugs, triple noise reduction. Sound insulation effect increased by 60%4.It can be washed repeatedly and used repeatedly, which is healthy and hygienic. Environmentally friendly and durable5. Comfortable to wear, equipedwith a rubg desugb to fit the shape of the auricle, it will not fall off when you turn over and sleep on your side.6.Full oval shape, professional noise reduction, quiet and comfortable. Translucent design high face value is more brilliant.7.The earplugs are composed of three parts: technology noise reduction outer ring filter, nano silica gel.8.360 Degree ring half in-ear earbunds, average effective noise reduction 28dB.