Custom-molded soundproof earplugs for sleep, swimming, and travel

General Description: Custom-molded noise-canceling earplugs are designed to perfectly fit the shape of your ears, providing optimal comfort and superior sound isolation. Thanks to their easy molding system, simply heat them in boiling water, let them cool slightly, and mold them to your ears. If the fit isn't perfect the first time, these earplugs can be remolded for an ideal fit. Technical Specifications: Three-layer noise isolation: Sound-absorbing sponge layer, Thermoplastic mold with two-layer sound insulation, High-density silicone sound-absorbing cover. Uses: These earplugs are ideal for various situations, including: Sleeping, Traveling, Working, Loud concerts, Security.