New and unused. Instant purchase is OK. Ships within 24 hours. 【High-Quality Sleep Environment with Complete Soundproofing】 With its unique closed-loop soundproofing technology, this product effectively reduces sleep-disturbing factors such as snoring, everyday noises, and traffic noise, transforming your bedroom into a quiet space. By optimizing the balance between soundproofing and breathability, the design allows you to clearly hear your alarm clock, making it an excellent noise-canceling earplug for maintaining concentration during work or study. 【Comfortable Design for Side Sleeping Without Pain】 The soft silicone material and ergonomic ear-loop shape minimize pressure on the ear canal. Comes with skin-friendly, soft silicone ear tips, supporting comfortable sleep without pain or discomfort even when sleeping on your side. Four sizes (SS, S, M, L) are included, allowing you to choose the optimal size for your ears. 【Washable & Comes with a Dedicated Case】 The earplugs are made of antibacterial, high-quality silicone, so they can be washed after use to maintain cleanliness, and are durable for repeated use. Comes with a dedicated case for convenient portability, making it economical. 【The Ultimate Earplugs for Multiple Scenarios】 These earplugs can be used in various situations, such as for sleep (snoring対策), studying, focused work in the office, on airplanes, and for concert protection. With smart soundproofing technology that selectively blocks specific frequencies, it allows you to hear warning sounds (alarms and calls) while effectively cutting out unwanted sounds (e.g., snoring). Developed as a next-generation item that overcomes the drawbacks of conventional soundproofing earplugs.