Jabra Supreme is the first Bluetooth mono headset with the latest in audio enhancement technology. Featuring Active Noise Cancellation technology, it creates an uprecedented sound experience by actively reducing back¬ground noise, ensuring pristine clarity of calls for both ends and delivering powerful sound through its 24mm speaker. With HD Voice the sound comes through clearly and wind-noise reduction technology makes calling in windy weather conditions smooth and hassle-free. These brilliant sound features enrich every conversation for both you and the person you are talking to. It also unites design and usability with its patented Flip-Boom arm and special designed headband for ultimate comfort.