• Made with ultra-soft and lightweight silicone, OPEIIN earplugs offer superior comfort by perfectly adapting to your ears. • Effective external noise reduction with a maximum of 28dB, ideal for sleeping, concentrating, or traveling. • Advanced hearing protection thanks to its design with cutting-edge acoustic engineering technology. • Reusable and easy to clean, they are an eco-friendly and economical long-term option. • Excellent waterproof performance, suitable for various environments. • Ergonomic design that facilitates use and ensures a perfect fit without protruding. • Product dimensions: 5 cm wide, 1 cm high, 5 cm long.