Improving upon the original model by implementing a detachable—and replaceable—cable, the Klipsch Reference On-Ear II Headphones have been designed to provide clear, crisp, and accurate sound, as well as a minimal, clean aesthetic. They provide a 40mm dynamic moving-coil driver which delivers a frequency response of 20 Hz to 20 kHz. With deep and soft ear cushions, the on-ear headphones offer both a comfortable listening experience and passive noise isolation. Furthermore, they can fold up when not in use, so you can store them in the included carry case when you're traveling. The detachable cable, which measures 48" in length and terminates in stereo 3.5mm plugs at both ends, gives you a mic and three-button remote compatible with iOS devices.