From the Manufacturer:VOYAGER 8200 UC Stereo Bluetooth Headset Wherever you work, noise can be distracting. So whether you’re in an open office or on a crowded flight, taking calls or listening to music, the boomless Voyager 8200 UC Bluetooth® headset with active noise canceling lets you focus on what’s important, in comfort & style.CONCENTRATE IN COMFORTWith its contemporary, boomless design & active noise canceling, Voyager 8200 UC blocks out background noise so you can concentrate on your work or your call in comfort & style. Soft ear cushions, 24 hours of listening time & a 3.5 mm audio cable allow you to play music whether you’re in the office, on a flight or on the go. Roam with ease at a range of up to 30 m/98 ft with a Class 1 Bluetooth® device.IMMERSE YOURSELF IN RICH AUDIOHear music & conversations with complete clarity. All tones, from high to low & everything in between, sound full & natural. Need to tune out distractions? The hi-fi stereo sound & dual-mode active noise canceling cut background noise while the boomless dual-paired microphones keep the focus on your voice.STAY CONNECTEDNeed to connect to your computer & mobile phone? No problem. By staying connected to two devices at once, you’ll never miss a call. Play music or answer your phone simply by putting on the headset, & pause your media player or mute a call by taking it off. A dedicated button gives you quick access to mute, while voice prompts alert you if you’re on mute when you start talking.