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. The 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 are designed for hearing protection and have been tested to reduce exposure to harmful noise. The built-in filter reduces noise by 35 dB (SNR), helping to maintain auditory health in loud environments. They help minimize the risk of noise-induced hearing loss and tinnitus.Hi-Fi earplugs: Hi-Fi earplugs reduce background noise while maintaining sound clarity. Ideal for live events, they deliver a balanced listening experience at concerts, festivals, sporting events, and other loud gatherings.Versatile use: Suitable for use at night, during work, travel, or in noisy environments. Helps create a quiet personal space to support focus, rest, and relaxation.Package contents: 1 pair of silicone earplugs with three interchangeable ear tip sizes (S/M/L), suitable for various ear canal sizes. Includes a compact storage case for protection and portability.