The Yealink CPW90 is a CP wireless expansion mic, which works as an audio input device for Yealink CP960 conference phone. It features superior audio technology and supports 360-degree voice pickup range at a wide radius without any wiring troubles. Capacitive mute touchpad plus place-and-charge charger cradle round out its user-friendly features, making Yealink CP phone wireless expansion mic CPW90 ease of use and being an ideal choice for organizations, who need optimal microphone placement and wider room coverage.