Polycom CX100 Speakerphone gives you the ultimate hands-free calling experience from your Microsoft Office Communicator 2007-enabled computer. Polycom CX100 Speakerphone enables crystal-clear, natural conversations without echoes or feedback. Enjoy the freedom of not wearing your headset for hands-free calls, or plug into the built-in stereo headphone port for private conversations.Polycom CX100 Speakerphone delivers remarkable wideband audio quality that enables seamless voice and video communications with no compromises. Two high-quality microphones provide excellent range for small group conversations.Polycom CX100 Speakerphone connects and powers through an integrated USB cable for easy installation and use - no extra cables to carry or batteries to charge. Its small size and carrying case make it easy to take with you. Plus, the high-fidelity speaker doubles as a great portable solution for CD-quality music and presentation audio.