Safe to wear and comfortable: smooth surface, hygienic, soft and comfortable, and provides good sound insulation. Wireconnected design: earplugs are connected by a wire, tightly joined to prevent loss, and easy to take on and off. Quick rebound and resilience: slow rebound, resilient, and can be restored to the original state within 7 seconds. density internal microstomata: inside the earplugs there are microstomata with very density. When noise passes through the inner wall, reflection and scattering occur, greatly weakening sound wave energy to achieve sound reduction. Silicone soft leather material and waterproof design: the soft leather of silicone material can quickly enter the ear canal. Its backpressure design makes the earplugs waterproof and not easy for water to penetrate when worn. Use scenarios Sleep in noisy environments: block partner snoring or ambient noise to improve rest and drive quality of sleep. Focus in noisy settings: use at the office, study room, or public libraries to maintain concentration and reduce distractions. Travel and commuting: suitable for planes, trains, or buses to reduce cabin and background noise, making travel more comfortable. Notes Designed to fit the ear canal with a quickentry silicone material and a backpressure waterproof design. Performance described reflects sound insulation and physical properties as specified in the product design.