- Noise cancellation up to 45 dB, blocks 95% of external noise for optimal rest. - Frequency filtering technology: eliminates annoying noises, keeps highs and mids clear so you don't miss important signals. - Soft medical-grade silicone, ergonomic and lightweight, no pressure or discomfort, suitable for prolonged use. - 4 sizes included (XS, S, M, L), suitable for men, women, and children. - Minimalist and elegant design, suitable for any style and gender. - Compact storage case and carrying pouch for greater convenience and hygiene. - Versatile use: sleeping, working, studying, traveling, sports, and concentration. - Reusable, washable, and durable, made from eco-friendly and sustainable materials. - Eco-friendly alternative to disposable earplugs, improved quality of life and stress reduction.