VXI Talkpro UC1
Optimized for Unified Communications with DSP and echo cancelling. Features a USB connection that plugs directly into a USB port on your computer, plea one-touch inline mute, volume and answer/end control. Three modes to choose from: mono, binaural and convertible (over-the-head, over-the-ear and behind the neck). Compatible with Microsoft Windows 7, Vista, XP, 2000 and Mac OS 9 and higher.