Eartip posts are angled for comfort, and each contains acoustic sound pipes made from stainless steel and high-durability resin for improved high frequencies. Each earbud can be detached from the 3.9' cable thanks to A2DC connectors. The cable has an in-line mic and remote for taking calls and controlling your audio playback. The earbud cables have flexible memory wire ends that loop around your ears for a comfortable custom fit. Four sizes of eartips are included, as is a carry pouch.