Here's the thing - you're not a typical 9-to-5 worker. So, you need a headset to match. With innovative WindSmart technology, adaptive noise-canceling microphone and Bluetooth earpiece, you can use the Voyager 5200 anywhere and still sound good. Wherever you do your best work, this headset does too. Features: Control calls without lifting a finger Count on clear sound, even outdoors Wear it comfortably all day - not just 9-to-5 Manage settings from your phone or desktop Four-mic noise canceling and a proprietary DSP cancel disruptive background noise like traffic or crowds Six layers of Poly's WindSmart technology ensure your voice comes through clearly - especially outdoors HD Voice clarity on wideband devices and networks