The METRO.Fi 100v combines an in-line microphone and control button for hands-free convenience with superior sound quality, allowing users to listen to their music and talk comfortably. Designed to fit the unique Apple iPhone headset jack (and other mobile phones with this same headset jack), the METRO.Fi 100v also features a fabric cord for tangle free storage. The METRO.Fi 100v's comfortable in-ear design provides noise isolation that reduces ambient interference and enhances quality of sound. Three sizes of soft, silicone ear tips provide the ultimate listening experience. Accessories include silicone ear tips with small, medium and large options as well as a pocket ready hard carrying case.