The Polycom CX100 Speakerphone provides a hands-free computer calling experience when used with Microsoft Office Communicator 2007. It features high-quality audio for clear calls along with two microphones, integrated controls, and portability through a USB connection. The speakerphone allows users to conduct calls without a headset through its high-fidelity speaker and microphones while providing integration with Microsoft Office Communicator 2007's audio capabilities.