Replacement Inline Remote and Microphone Audio Cable Cord For Bose QuietComfort 15 QC15 Headphone Compatible for Bose QuietComfort 15 QC15 Headphones. Switch for Control volume, Inline Microphone for phone calls, switch between calls and music with the press of a button Cable is approximately 5.5 ft ,as a standard audio cable,for connecting QuietComfort 15 headphones to your audio sources Contoured,angled connector fits iPod,DVD,smartphones and other portable players. Material: Rubber and metal wire.Socket type: 3.5mm