45 dB noise reduction for quiet in any environment. These earplugs use multi-layer acoustic insulation and high-density sound-absorbing materials to reduce noise by up to 45 dB and block 95% of disturbances. They perform well on loud airplanes, busy offices, with a snoring partner, or at concerts, creating a calm space for focus and relaxation. All-day comfort and a perfect fit. Made of ultra-soft silicone that conforms to the ear canal, they are lightweight and designed for comfortable wear without pressure or irritation, even over long periods. Sizes: XS, S, M, L for sleep, travel, or work. Advanced frequency filtering to protect your hearing. Modern frequency-selective filter technology with a precise multi-layer structure blocks disruptive low frequencies while letting mid and high frequencies pass. You won’t miss important cues while reducing harmful noise. Portable and stylish. Minimalist design suits any style and all ages. Includes a compact storage case that fits in any pocket so you can enjoy quiet anywhere. Eco-friendly and durable. Reusable silicone earplugs are easy to clean and stay like new after cleaning, offering long-lasting noise reduction. For optimal results. 1) Ensure a secure, comfortable seal. 2) Choose the correct size. 3) If needed, adjust the insertion direction. 4) Tip: a slightly deeper insertion (within comfort and safety) can improve passive isolation. Note. This is passive noise isolation, not active noise cancellation (ANC). If you experience slight discomfort during sleep, remove the gold-plated inner ring—this does not affect noise reduction. Size selection tips. Method 1: trial fit — try all sizes and keep the most comfortable that doesn’t slip out; if they slip out, go larger; if they feel tight or painful, go smaller. Method 2: seal test — with the right size, ambient noise is greatly reduced even without music. Method 3: sound quality — good fit gives full bass and clear voices; a poor fit sounds thin or leaky. Usage guidance. Ear sizes can differ left/right, so choose accordingly. For first use, start with size M. If fatigued after long wear, try a smaller size. After each use, clean the earplugs. They are reusable, and proper care preserves comfort over time.