The ATH-CP700BK features a headband cord that wraps around the back of the head to keep it in place and fit comfortably. Its new active-fit earphone design has a flexible pivot that provides comfortable in-ear positioning, and directs the sound toward the ear canal for maximum bass impact and clarity, while allowing awareness of outside sounds. The ATH-CP700BK's cord-mounted remote provides the ability to control volume and music playback functions on the fly, allowing easy access to controls on compatible Smartphones, MP3 players and other devices. The sensitive built-in microphone lets you answer calls or use voice-over controls on select Apple models. The headphones have IPX5 Waterproof Certification that allows them to be washed after use. The ATH-CP700BK has a single-sided cord and a cord clip for easier cord management and comes with a 2-ft. (0.6 m) extension cord and handy carrying pouch.