Cavity Control Technology Thanks to cavity control technology Edifier has been able to innovate upon their headphone design. Enriching bass response has helped ensuring that the best beats at the latest clubs play eloquently through these wired headphones. Inline Volume Playback Control Using the inline controls, take control of your audio by adjusting the volume when you need to be loud and turn it down when you need to hear around you. Press the playback button to pause and resume tracks when it is time for a break. Ergonomic Headphones Having a comfortable feel is equally important as audiophile sound quality. The H880 headphones have an ergonomic fit that feels blissfully beautiful using leatherette ear pads. Full Metal Connections The H880 use an alloy construction and fully metallic connector for ensuring long term durability. These headphones will last long for listening sessions or binge watching the latest movies, shows or playing the latest games.