Effective Noise Cancellation: Our earbuds reduce noise levels to NRR 30dB for your peace of mind. These earbuds dampen the noise around you, help you sleep, focus on work or study, and protect your hearing. SOFT AND COMFORTABLE: Our sleep noise-cancelling earbuds are made of high-quality silicone and fit gently into your ear canal. Soft, low pressure and skin-friendly silicone provides comfortable long-wearing. FITS ALL SIZES OF EARS - Our sleep noise-cancelling earbuds are professionally ergonomically designed to fit the adult ear canal. Our Noise Cancelling Earbuds are available in 3 sizes (S/M/L), please test to get the correct size for your ear canal for maximum noise blocking and comfort. Health and Hygiene: Sleep noise-cancelling earplugs do not add dyes and other harmful chemicals, and are made of environmentally friendly silicone, which is not harmful or irritating to the ears. Do not go deep into the ear canal to avoid inflammation and bacterial growth. The included clear storage case also helps you store your earbuds, preventing dust from accumulating in them and making them easy to find. Reusable and Keeping Placement: The earbuds for sleep noise cancellation are reusable and can stay with you for a long time. The small ear hooks fit nicely and neatly into the ear canal, preventing the earbuds from falling out. Choose the most suitable ear tip size to prevent falling out. They are loved by audiophiles and are ideal for people who are easily triggered by noise (noise sensitivity, musicians, parents, etc.). We only sell earplugs, not other items in the picture. Due to differences in different monitors, the pictures may not reflect the actual color of the item. Due to manual measurement, please allow slight size errors.