Noise Reduction: 28dB Noise Reduction Rating (NRR). Effectively blocks harmful noise. Protects hearing during noisy events or provides a peaceful environment for restful sleep. High Sound Quality: Silicone earplugs maintain music quality at concerts and festivals. Attenuates high-volume sound to retain the full sound spectrum. No dull blocking like foam earplugs. Wide Application: Achieve effective noise reduction with small, clear earplugs powerful enough to protect your hearing in noisy environments. Can be used as noise-canceling earplugs for sleep, travel earplugs, swimming earplugs, soft noise-reducing earplugs at work or entertainment, etc. Natural Soft Silicone Material: Corded earplugs are made of hypoallergenic silicone, non-toxic, soft, and won't harm the ear canal. Causes no itching or allergic reactions. Four Different Colors: Choose one to match your hair color and outfit. Four carrying cases included to keep the plugs clean and easy to carry in your purse, backpack, or pocket. Each pair of earplugs has a separate case. Can't sleep because of noise? Disturbed by noise? Don't worry about your partner's loud snoring or living in a noisy area; whether you're traveling on a plane or your neighbor is having a party, these noise-reducing earplugs will dampen noise and create a peaceful environment for you. Earplug Features: Comfortable and soft. The smooth surface, as well as the unique design, allows these earplugs to fit perfectly in your ear canal, guaranteeing unparalleled comfort. Stop wasting money on cheap earplugs that are too hard, damage your ears, or are too small and constantly fall out. Noise Reduction Rating: 28 dB. Perfect for concerts and festivals, sporting event attendees, musicians and DJs, bartenders and waiters, construction workers, swimmers, shooting, meditation and yoga, work-from-home parents, students needing to focus and study. Suitable for swimming: These silicone earplugs can prevent water from entering the ear canal, protecting against infections due to bacteria. Cordless Earplugs Convenient to take them everywhere. Each pair has its own independent box. Reusable and washable. No need to waste money buying other earplugs. These earplugs are reusable and washable. Package Contents: 4 pairs of earplugs and 4 plastic cases. Warning: Not suitable for children under 36 months as children may risk choking. Keep out of reach of children. Adult supervision required for children.