[uloverun]40Pcs Sponge Covers Tips Soft Foam Headphone Ear pad ReplacementFeatures: -The earbud covers are designed to enhance the fidelity , providing more vibrant sounds. -Suitable for headsets. commonly used with ipod players, mp3 players, mobile phones, PDA's etc. -The Foam with features of high elasticity, durable and soft. -Good replacement for your worn-out or lost ear pads. -Compatible with most headphones. Specification: Material:Foam Color:Black The function of sponge sleeve: Non-slip, no ear cotton earphones easy to fall off the ear, wear not firm. Prevent sound leakage and fully enjoy the sound from headphones Prevent the resonance between the earplug shell and the ear bone, and relieve the discomfort of ear mouth caused by wearing earphones for a long time. Don't look at it as inconspicuous, but it can't be ignored. The bass of some headphones is one of its shortcomings. Without ear cotton, it feels that the treble is higher, the bass is a little empty, and there is a phenomenon of sound leakage. After adding ear cotton, the bass becomes very real, the phenomenon of sound leakage disappears, and the high, middle and low frequencies appear to be more balanced. So if you don't feel good about the bass of headphones, don't forget to put ear cotton on your earplug when listening to music. It can add balance to your love machine and bring you better bass expression. There are tiny vocal holes on earplugs. When you plug earplugs in or out, dust will probably enter the earplugs through these holes. The earplugs have thin shock membranes, only a few microns. A little dust will change the vibration of the shock membranes, thus affecting the sound quality, and even causing damage to the earplugs. Cotton can prevent the external impurities from entering earplugs and protect them. Package includes:40Pcs Earbud Covers