All Grado headphones have a vented diaphragm design that incorporates a large air chamber. This design concept lowers the frequency resonance (distortion) of the diaphragm and extends bass response. The diaphragm is made of a low mass polymer, carefully formed to broaden resonant modes to reduce their amplitude.

The Grado headphones provide a superb best sound quality that will surely be appreciated by all music lovers. You will surely enjoy listening to your favorite mp3's and music when using these great headphones. There are plenty of wireless headphones out in the market but it's hard to top the quality of the Grado headphones. These headphones are made with the highest quality, so you can be confident that you'll be getting your money's worth. The Grado headphones will surely provide you with a great music listening experience!