• Custom molded earplugs for a perfect fit and optimal noise cancellation. • 31 dB noise reduction with high NRR value to protect your ears in various environments. • Made of soft skin-friendly silicone for all-day comfort. • Thermoplastic design allows molding by immersing them in 70-degree water for 30 seconds. • Ideal for use in shooting, travel, swimming, work, and concerts. • Ergonomic structure filters noise while allowing normal communication with others. • Helps reduce ambient noise during night rest or breaks to promote deep sleep.