Hearing protection structure: The sleep earplugs are made of soft and comfortable, high-quality silicone. The ergonomic, curved design adapts to the contours of the ear canal and effectively blocks out noise without exerting pressure on the ear. These earplugs for side sleepers do not press against the ear and remain comfortable when worn all night. The skin-friendly material helps prevent irritation and can be reused by rinsing with water.Noise-cancelling earplugs: These earplugs have been tested for hearing protection to help safeguard your ears from harmful noise levels. The built-in filter reduces noise by 35 dB (SNR), allowing you to stay protected in loud environments. This helps reduce the risk of noise-induced hearing loss and tinnitus.Hi-Fi earplugs: Designed for live events, these earplugs reduce noise while maintaining sound clarity. They block background noise without compromising audio quality, providing a clearer listening experience at concerts, festivals, sporting events, and other loud gatherings.Versatile use: Ideal for use at night, during work, travel, or busy commutes, these earplugs create a quiet personal space whenever needed, supporting better concentration and relaxation.Package contents: 1 pair of silicone earplugs with three sets of interchangeable ear tips in sizes S, M, and L, suitable for various ear canal sizes. Includes a compact storage case to keep the earplugs clean and secure when not in use.