Reduces sound by approximately 40dB. By wearing these when you are concerned about surrounding noises, such as during sleep, work, study, or in public transportation, they will block out unpleasant sounds in your ears. They maintain their elasticity even after long-term use, and can be washed with water to be reused repeatedly, making them hygienic and economical. After use, wash with water, dry, and store in the dedicated case. ⋆┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈⋆ ＊Instant purchase welcome・Midnight silent purchase OK◎ ＊Please be sure to read the profile as well◎ ＊Opened for photography ▶︎ Listed as "Like New"◎ ⋆┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈⋆ #MIA～Silent & Instant Purchase OK Listing List Please understand that these are stored at home and will be shipped in simple packaging. ▪Please check the actual product photos for the condition of the product. ▪To offer the product at a slightly lower price, it may be compressed slightly or removed from the box for shipping due to shipping costs. #MIA～Silent & Instant Purchase OK Listing List Earplugs for sleep, complete soundproofing, good sleep, noise canceling, high performance, sound insulation value 40dB, good sleep, noise reduction, relaxation, airplane, study, washable 39-34 8-21