Simply plug the CHAT 150 USB Speakerphone from ClearOne into a USB port on your PC or laptop and begin using a variety of web conferencing applications such as IBM Workplace, Microsoft Live Meeting, WebEx, Google Talk, Skype, Vonage, and more. This speakerphone can also be used in conjunction with VoIP softphone applications from Avaya, Cisco, Nortel, and Mirial virtually eliminating the need for a traditional, hard wired telephone. Inside the CHAT 150 you will find full duplex functionality providing a smooth transition between talking and listening, enhanced noise cancellation, and advanced audio level management. Once installed you can take advantage of three built-in microphones covering a distance of up to 8 feet in all directions. Additionally, volume up, volume down, and microphone mute buttons make it easy to adjust call volume while on a call.