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 canal. The earplugs for side sleepers do not exert pressure on the ear and remain comfortable when worn overnight. The skin-friendly material helps prevent irritation and can be reused by rinsing with water.Noise-cancelling earplugs: These earplugs provide hearing protection by reducing noise exposure. The built-in filter reduces noise by 35 dB (SNR), helping to maintain hearing health in loud environments. They help minimize the risk of noise-induced hearing loss and discomfort associated with prolonged noise exposure.Hi-Fi earplugs: Designed for live music events, these earplugs reduce background noise while preserving sound clarity. Ideal for concerts, festivals, and sporting events, they offer a balanced listening experience without compromising audio quality.Versatile use: Suitable for use at night, during work, travel, or in noisy environments. Helps create a quiet personal space to support concentration, rest, and relaxation in various daily situations.Package contents: 1 pair of silicone earplugs with three sets of interchangeable ear tips in sizes S, M, and L, suitable for different ear canal sizes. Includes a compact storage case for safekeeping and portability.