?After-Sales Service?If the products have problems, you can contact us at any time, we will provide you with satisfactory after-sales service.(Note: The sleeping ear plugs can block some noise to a acceptable volume, but not totally silent. )*Tips: Keep them away from kids under 3 years (they may put it in their mouth). ?EASY TO USE?These earplugs are easy to insert and when you wear them correctly, they don't stick out of your ears. They come in 3 sizes (S / M / L), if your ears hurt, it is best to take a smaller size. If the earplugs do not reduce sound sufficiently or fall out, it is best to try on a size larger. *Fashionable Accessory that protects your hearing. ?Optimal Comfort?Our upgraded version of lightweight and soft silicone earplugs is designed according to ergonomics and conforms to the shape of the human ear. When worn, the ears feel quiet and comfortable. They can cover the ears without going deep into the ear canal, making them comfortable and stable, and painless to wear for a long time. ?Multi-Purpose?FNGXX are versatile earplugs that offer protection from loud noises and background noise in many situations.It's comfortable and easy to wear, and won't feel hard on the ears. They are great for sleeping and can help you to focus or to concentrate while studying, working or reading. And of course, they are a must have while traveling or commuting. ?Effective Noise Reduction?FNGXX Earplugs are reusable and durable hearing protection, made from soft silicone. They provide professional-grade hearing protection by isolating and filtering out harmful sounds. They have a noise reduction rating (SNR) of 35 decibels, NRR of 16 and come in 5 stylish colors.