Thank you for viewing! This is a soundproof ear cuff. It's easy to wear, just clip it onto your ear, and it's helpful for concentration while studying, reading, or working, as well as for managing noise during sleep. It has been used only once and has been disinfected with alcohol. ✔️ Ergonomic shape for a comfortable fit ✔️ Washable and reusable ✔️ Recommended for those who dislike earplugs I will carefully package and ship it after purchase. Instant purchase is welcome. #ForStudy #Concentration #ForSleep