About this item Replacement audio cable for headphones: compatible only with QuietComfort QC 15 noise cancelling headphones. Ultra quality and soft wire: features high tensile strength, in-line microphone, and control for excellent sound performance, designed for long-lasting use. Widely Compatible with: iOS devices, including iPhone 3GS / 4 / 4S / 5 / 5S / 6 / 6 Plus. In-line mic with remote buttons for calling functions, volume control, and music control. Perfect replacement cord with 3.5mm plug: easy to install and fit perfectly. Equipped with two male plugs, one straight and one 'L', allowing for convenient plug-and-play usage. Experience maximum sound quality with ease. Just plug and play: Enjoy your music anytime. Dimensions: 3.94 x 3.15 x 0.5 inches.