Compatible WithUpgraded Replacement earpads for sennheiser headphones are compatible with sennheiser HD4.50BT,HD4.50BTNC,HD4.40BT,HD4.30G HD4.20S,HD458BT,HD350BT,HD400S heaphones earpads replacement. Ear cushions give your headphones a new look. Breathable DesignHD4.50BT replacement earpads are designed with breathable mesh fabric to make your ears do not sweaty when you wear them. High-quality earpad parts are specially designed to enjoy all-day music, keep them comfortable and take care of your ears. Soft & ComfortableFor sennheiser replacement earpads are made superior memory foam,very comfortable and soft; its mesh fabric to ensure that for sennheiser hd440bt earpads are more ergonomic and comfortable to use all day without any problem. About InstallationYou just remove the old ear pads and put the new ear pads into the ear cups for headphones, you can easily snap the ear pads into your headphones. You can quickly make your headset look like new without any auxiliary tools. (Refer to the pictures/video for install steps) Satisfaction GuaranteePackage included: 2 x HD4.50BTNC earpads replacement, 4 x wipe pads. if you have any queation about hd450bt replacement pads, please contact us at any time. Hope you have a good shopping experience!