★ Instant purchase is welcome! [Supervised by a sleep expert] Supervised by a sleep consultant and physical therapist who are experts in the body and sleep. Effectively reduces noise and can be used not only for regular sleep but also while traveling. [Effectively reduces noise] Adopting a unique ergonomic shape, it can reduce noise by up to 30dB. Also, the angle is designed to be comfortable even when tossing and turning in bed. (*This is not complete soundproofing) [For various situations] Developed for sleep, but can be used in various situations. It can be used for sports such as walking and running, in situations with loud surrounding sounds such as live performances, and when you want to concentrate on work or study. [With storage case] Comes with a small storage case. It is pocket-sized and highly portable. [Size] Main body: 2.5 x 1.5cm Storage case: 3.5 x 3.5cm [Set contents] Earplugs x 1 set (for both left and right ears) Storage case x 1 [Color] Black [Sleep consultant supervised] Sleep earplugs, good sleep, sound sleep, relaxation, noise reduction, 30dB reduction, relaxation, hearing protection, snoring, soundproofing, live concerts