NOISE REDUCTION EARPLUGS: Noise cancelling earplugs with one-piece design for better noise reduction that reduce noisy voice level by up to 25-33dB, protecting your ear hearing from noisy environments. The ear plugs for sleeping will provide some noise attenuation to an acceptable volume, but they wont make it completely impossible to hear soundCOMFORTABLE AND REUSABLE: Ear plug for sleep is made from soft silicone and ergonomically designed shape, which is flexible, durable, skin-friendly, reusable, waterproof and comfortable to wear. Equipped with 3 different sizes of earbuds, no need to tediously change ear tips, you can easily choose the right earbuds according to your scenarioEASY TO USE: These earplugs are easy to insert and do not require replacement of ear tips, they come with 3 pairs one-piece earplugs in different sizes (S M L) and small carrying case. If your ears hurt, choose the smaller size. If noise reduction is not effective, choose the larger sizeMULTI-PURPOSE: Ear plugs for noise reduction look stylish and don't stick out of your ears, can protect your hearing from harm. Perfect for sleeping noise cancelling, concert, working, studying, party, noise sensitivity, flights, shooting, motorbike, yoga, meditation, snoring, showering, swimming and other loud places