Compatibility: Fit perfectly on Cassette On-Ear Wireless Headphones. Please CHECK your Headphones' model before purchase. Keep Your Ears Cool: The Soft Cooling-gel is added under the top layer fabric (breathable Ice Silk fabric) of the earpads, absorbing the sweat in the summer days and keeping your ears cool after a long time of use. Rugged Durability: We added stitching and mighty glue on the inside seams of each earpad to prevent them from splitting. What's more, our Cooling-gel earpads will never go flat and cause discomfort to your ears as time goes by. Enhanced Sound: Your old earpads negatively affect the sound quality of your headphones, while our well-maded earpads will not affect the sound performance of your headphones and make your headphones look brand-new again. Flawless Installation: Our earpads perfectly fit your headset base. No extra tool is needed and you can complete the entire installation within a few minutes. If there is an issue with your purchase, please feel free to contact us directly. 1