With super comfort, this breathing memory earbud tip will bring you a new experience without stimulation and fatigue. friends, if you love to listening to music, do not miss it!Main Features: ? The private earbud tip is expanded and perfectly filled with your ear canal? Surprisingly durable, keep your ear canal alive? Enhances sound effect and isolates the outside noise, so as to deliver pure musicUsage method: pinch it with your hand, it will automatically expand and filled with your ear canal and achieve good sound insulation effect