Plantronics headsets have become the world's talking point, with more than six million in use today. The TriStar headset offers premium sound quality and is the first to combine light weight and small size with a unique design to provide optimum over-the-ear fit. ¤¤The TriStar H81N headset is available with the added benefit of a noise-canceling microphone, eliminating background noise by up to 92%. With its simple design, replacing the voice tube or earpiece is quick, cost-effective, and takes only seconds. With four sizes of user-selectable earbuds and an adjustable receiver arm, the TriStar headset can be custom fitted to just about anyone. Weighing under one-half ounce, TriStar is a pleasure to wear. TriStar headset wearers can easily multitask as they talk on the phone. If it becomes necessary for wearers to leave their desks, they can simply use the Quick Disconnect feature without removing the headset, and the other party stays on the line. Plantronics uses a proprietary voice tube design, with patented SoundGuard Plus and Call Clarity technology, which contribute to the TriStar headset's excellent sound quality.