DOUBLE WATERPROOF PROTECTION: The silicone earplugs for swimming are designed with a triple waterproof filter that prevents water from entering the swimmer's ears and protects them from infections. You will hardly notice that you are wearing them while swimming. You can fully enjoy your swim. EFFECTIVE NOISE CANCELLATION: The noise-cancelling earbuds have a triple noise-cancelling factor of up to 40 dB, which reduces most noise to protect your hearing and restore a peaceful world. They allow sound to pass through while reducing noise. They can be used not only for swimming, diving and surfing, but also for studying, sleeping and other activities, so you can fully enjoy the benefits of the earplugs. VERSATILE USE: The soft silicone material has good elasticity and memory, an ergonomic shape, is very comfortable to wear, does not fall off easily, does not cause pain or itching in the ears, and is suitable for sleeping, studying, working or reading and concentrating. SKIN-FRIENDLY MATERIAL: Made of 100% one-piece silicone material, not easy to fall off, more comfortable to wear. They not only prevent eardrum inflammation, but also do not put pressure on your ears when you sleep on your side. After use, simply rinse with water and reuse, very environmentally friendly. PORTABLE CASE: Each pair of earplugs comes in a clear case that is easy to store when not in use. After each use, you can rinse the earplugs with water and place them in the case for reuse. Thanks to their light weight and portability, you can carry the earplugs with you anytime, anywhere, and focus on your own world without external distractions. VERSATILE: Our noise-cancelling earbuds can help shield you from distractions in a variety of settings. They provide a quiet and comfortable sleep environment, and a pleasant environment for studying, working or reading. They are also indispensable when travelling or commuting.