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 overnight. The skin-friendly material helps prevent irritation and can be reused by rinsing with water.Noise-cancelling earplugs: These earplugs provide hearing protection in noisy environments. The built-in filter reduces noise by 35 dB (SNR), helping to protect your hearing in loud settings. This can help reduce the risk of noise-induced hearing loss and tinnitus.Hi-Fi earplugs: Designed for live events, these earplugs reduce background noise while maintaining sound clarity. They deliver a more balanced listening experience at concerts, festivals, sporting events, and other loud environments.Versatile use: Ideal for use at night, during work, travel, or in noisy public spaces. These earplugs help create a quiet personal space to support focus, rest, and relaxation.Package contents: 1 pair of silicone earplugs with three sets of ear tips in sizes S, M, and L, suitable for various ear canal sizes. Includes a compact storage case for safekeeping and portability.