Recommended by Hearing Professionals: These soundproof earplugs utilize high-performance filters. Compared to other earplugs, they offer superior sound insulation across a low to high-frequency range. They've been further improved for a more comfortable fit, eliminating ear canal pain and increasing sound insulation. They won't fall out of your ears even when you toss and turn in your sleep, so you won't have to worry about them. High-Performance Filter: These earplugs can reduce sound by approximately 32dB. By wearing them when you're concerned about surrounding noises, such as during sleep, work, study, or in public places, they will block out unpleasant sounds. Designed to Fit Your Ears: You won't feel ear fatigue or discomfort even after wearing them for extended periods, such as during sleep. They are designed to be short, so they won't get in the way when you roll over in bed. *To reduce pressure, we recommend not completely sealing the ear canal.* Same Shape for Left and Right Ears, Unisex: Four sizes of ear tips are included, allowing you to choose the size that best fits your ears. Comes with a case. Washable and reusable! Further Enhance Sound Insulation with the Correct Wearing Method! If the ear tips don't fit, after wearing the earplugs in both ears, replace them with the ear tips that best fit your ear canals to ensure comfortable soundproofing. Adjust as needed. Contents: 1 set of earplugs (2 pieces), 4 sets of ear tips (XS, S, M, L) A678