The Boult Audio ProBass Ranger Bluetooth headset comes with micro-woofers that take your music-listening experience to the next level with added bass. The headset comes with a comfortable design that makes wearing this headset a pleasurable experience for long hours. It also features a passive noise-cancelling function that cuts off ambient noise so you can listen to your music or converse freely without getting distracted by noisy surroundings. The in-line controls of this headset allow you to manage your calls as well as control your music.