Great audio quality can be the difference between a successful video conference and complete frustration. Panasonic have gone to lengths to insure the audio on the HDVC units is crisp, smooth and natural. With a unique echo canceller the HDVC units fill your conference with clear full-duplex broadband stereo.The Panasonic KX-VCA002 analog boundary microphone features a 300° meter radius. The KX-VCA002 has a pick up area meaning it will comfortably operate in a boardroom with up to 10 people.