Thanks to the memory effect of the special foam, ComplyFoam molds perfectly to the ear canal, blocking out external noises. This allows you to listen at lower volumes since fewer ambient sounds need to be drowned out. Experience your earbuds in a whole new way. A well-fitting earbud that prevents outside sounds from entering and inside sounds from escaping sounds better. They provide a secure fit in the ear. In addition to maximum isolation and improved sound quality, ComplyFoam tips also stay in the ear better. As they conform to the ear canal, the tips are "anchored" and do not slip out as easily as standard silicone tips.