40dB Noise Reduction: Featuring a 3-layer structure, these earplugs can achieve up to 40dB of noise reduction, double that of standard earplugs. They are an excellent choice for studying, sleeping, working, concerts, and general hearing protection in noisy environments. Responsive Design: The earplugs are designed with fins to prevent them from falling out. The 160-degree angle is ear-friendly and won't cause discomfort during sleep, even for side sleepers or those who tend to toss and turn. Wide Application: Suitable for sleeping, snoring, studying, bathing, traveling, noisy activities, concerts, airplane discomfort, motorcycles, and more. They are appropriate for all ages, protect your hearing from noise, and can be washed and reused. Maintain High-Quality Sound: These earbuds effectively reduce overall volume and block background noise to comfortable levels while preserving sound clarity and sharpness.