The AH-D510R over-ear headphones feature a 3-button remote control and microphone, allowing you to control your iPhone® music functions (such as play/pause, fast forward, rewind, or volume), as well as answer or end calls. The headphones also incorporate Denon's unique high-quality sound technologies, including the Acoustic Optimizer for enhanced audio performance and a hybrid metal housing made of aluminum alloy and resin, designed to absorb vibrations and maintain sound quality.