Compatibility - They are not compatible with any other models. The ear pads are designed specifically for : Bose QuietComfort QC15 QC35 QC2 qc25 AE2 AE2i In the package: 1 pair of earphone pads (left and right) Revive your Refresh your Headphones . Your headphones have stood the test of time. They have been there for you on public transport, during travels and when you just want to forget the world around you. Give your headphones a new lease on life with these ear pads。 Design and Quality - The headband Protein leather and foam has been upgraded to increase comfort and longevity. Premium protein leather is combined with a high-density soft foam and the ear pads are shaped with ideal dimensions. The new protein eather is smooth and soft and will gradually conform to your ear shape over the first few weeks of listening; giving you the comfort you need to enjoy your tunes. Quick and easy installation - Some DIY skills are needed but let´s be honest, this is no match for your awesomeness. Detailed instructions and video can be find on youtube to make the installation process nice and easy. Products SKU:dqs-a-47