for swim--can be widely applied in various activities like swimming, diving and sports, noise-isolating; sleep--this is perfect for swimming, bathing, showering, surfing, snorkeling and others, noise cancelling sleep; Silent --tasteless, waterproof and cause no allergy to your skin, more safe to use, for sleeping; sleeping--the can't block out all noises but by wearing the, disturbing sounds will be muffled, for sleep; Noise cancelling for sleep--universal design not for teens, but also adults, very professional and practical, sleeping
What's in the box
3 x Earplugs
