Designed to fit in the ear securely and comfortably, Nirvana eliminates the need to adjust your earphones in the middle of your routine. These earphones are created to give you powerful sound with a lightweight, stable fit. Pick up calls on-the-go with the call button & built-in mic. Control your music playback via the in-line remote. Universally compatible with all devices supporting 3.5mm audio support. Experience earphones built around your life.