1. Safe and Durable: Jayine sleep earplugs are made of high-quality silicone and ABS, non-toxic, odorless, healthy and environmentally friendly. Both the outer ring and the earplug head are detachable, easy to clean and long-lasting. These earplugs are very suitable for use in scenarios such as sleeping, studying, working, commuting, traveling, and in cafes, allowing you to enjoy quietness at any time. 2. Effective Noise Reduction: The noise reduction rating (SNR) of these sleep earplugs is 30dB, which can effectively reduce the interference of environmental noise, enabling you to fully enjoy your own time and space. Moreover, they will not affect your normal communication with people around you. (Note: These earplugs can provide hearing protection but cannot achieve complete silence.) 3. Stylish and Comfortable: The black sleep earplugs are classic and versatile. Besides protecting your hearing, they are also fashionable items! 4. Easy to Use: Different from ordinary foam earplugs, these silicone earplugs do not need to be squeezed or waited for. You just need to gently insert them into your ears and then rotate them to adjust to the perfect angle. They are soft in texture, comfortable against the skin, and waterproof, with a wider range of applications. 5. Easy to Carry: These noise-reducing earplugs come with a small and lightweight storage case. You can put it in your pocket, bag, or suitcase, or hang it on your keychain, making it very convenient to carry. They are also considerate gifts for family members, loved ones, and friends.