Version optimized for microsoftreg lynctrade and microsoft ocs 2007 more uc headset for your uc dollar enter uc with the best featured headset you never thought your budget could afford blackwire 300 series usb headsets are a simple to use comfortable and durable choice for conference calls web based training and pc multimedia applications inline controls make it simple to answer and end pc calls and control volume and mute the lightweight metal headband provides durability while delivering