The CyberData Multicast Microphone is a device that allows the user, while pressing the "Page" button, to broadcast a live or buffered announcements directly to VoIP audio endpoints that support Multicast. This PoE-powered product is perfect for immediate live paging in schools, retail stores and manufacturing environments. In an echo sensitive environment, the delayed page support allows the user to record a message while the page button is depressed. Once the page button is released, the page will be sent.