The Sony XBA-3IP Balanced Armature Headphones feature Sony's triple Armature drivers with a dedicated miniature full range driver, woofer and tweeter installed into each earbud. This Japanese manufactured driver technology delivers outstanding audio clarity, rich bass and profound vocals. The headphone's enclosure features a double-layered housing resulting in impressive noise isolation. The 3.93' (1.2m) cable features a gold-plated L-shaped 1/8" (3.5mm) mini connector for use with portable player devices. The inline remote supports volume and transport remote control over iPhones, iPods and iPads. There is a built-in electret condenser microphone for making and answering phone calls.