The HCS-48U7 series are newly released flush-mounted chairman and delegate units available from the TAIDEN HCS-4100 wired digital conferencing system. All units have a detachable stem microphone, a built-in speaker, a microphone activation button and a headphone jack with volume control. This flush-mounted unit is a design of choice for permanent installations in executive boardrooms, auditoriums and training centers. Conferencing microphones provide superior audio intelligibility, a way to control requests to speak, and the facility to capture and retrieve all meeting information.