I purchased this on Amazon, but I no longer have a use for it, so I am selling it. Opened and contents checked. All accessories are included. [Supervised by a sleep professional] Earplugs for complete soundproofing, Ewbob earplugs for sleep, 55dB noise reduction, noise-canceling earphones, for work/study/live performances/travel/in-flight use, only snoring is not heard, with storage pouch, hearing protection, ear tips made of silicone, washable, reusable, unisex (4 sizes S/M/L/XL) Ergonomic design, fits the ear】 Comes with redesigned ear tips in 4 sizes (XS, S, M, L) that provide excellent sealing for all ear sizes and ensure a secure fit. 【Soundproofing is the most important】 The SNR value reaches 50dB, providing high soundproofing performance. It blocks out most noise, allowing you to immerse yourself in a quiet atmosphere wherever you are. Improves sleep quality and concentration, and protects hearing. High-performance earplugs not only reduce sound to the optimal volume as sleep earplugs, but also help you concentrate on studying and working. 【Safe and clean earplugs】 Because earplugs come into contact with the skin, the main body can be washed with water, so you can always use them in a clean state. Moreover, it can be used repeatedly, making it environmentally friendly and wallet-friendly. Comes with a dedicated case for clean storage and carrying when traveling or on business trips.