Blocks out background noise. 82% noise cancellation. Off-the-road relaxation. Enjoy music and videos in Hi-Fi stereo. Flexible connection. Use two cell phones or a phone and a PC at the same time. Walk and talk. Roam up to 300ft from paired Bluetooth devices. All-day conversations. Up to 24 hours of talk time. Easy to use. Control music and calls directly from the headset. Wireless or corded. Connect with a cable or go wireless with Bluetooth. Enjoy detailed wireless audio with these S450-XT headset. Get rid of the tangles and love your music with these wireless Bluetooth headset. Stay connected smoothly with a wireless range of 300 ft. Engineered for superior calls in high-noise environments