10.7mm high efficiency dynamic drivers deliver full range acoustic reproduction. Lightweight, ergonomic and comfortable. Built-in microphone lets you record voice memos, activate Siri and have hands-free conversations. Adjust volume by pressing the + and - buttons. Control music and video playback; including play/pause and next/previous by pressing the center button. In-line control at your fingertips. Plug and play your New Apple device. 4 ft. cable length. Interchangeable color caps. S/M/L single flanged silicone inserts provide unparalleled noise isolation and comfort.