Effective Noise Cancellation: The noise cancelling ear plugs that reduce noisy voice level by up to 30-35dB, Providing natural quiet sound quality, protecting your ear hearing from noisy environments. (Note: Noise Reduction100% Mute) Designed For Comfort: The noise reduction earplugs made from skin-friendly flexible silicone material and ergonomically designed shape, the silicone ear plugs comes with 3 different silicone eartips sizes (S/M/L)+2 different memory foam eartips sizes (S/L), so you can always find the perfect fit in your ear. You can use earplugs long periods for day and night with no pain Multi-Purpose: These silicone ear plugs can protect your hearing from loud noise. Perfect for sleepping noise cancelling, working, studing, concert or party, flights, noise sensitivity, yoga, meditation, snoring, motorbike, focus and etc Portable & Reusable: The ear plugs for sleeping is super light-weight and easy to carry anywhere with handy carry case. They are washable and reusable so that you dont have to replace them night after night. Simply clean them or clean them with soap and warm water between uses Package Included: There are 1 pair of earplugs, 3 sizes of soft silicone ear tips (S-L), 2 sizes of memory ear tips (S-L),1 handy carry case. Our silicone sleeping earplugs are washable, durable and reusable, providing a quiet world in your life.