Compatible with QuietComfort 3 Acoustic Noise Cancelling?? headphones.</br></br>Product Description</br></br>Replace lost or damaged QC??3 ear cushions with a new pair designed for easy installation. Cushions align with mounting posts inside the headphone earcups?? then snap easily into place.</br><br/>http://www.amazon.com/gp/product/B0073H93GK