HCS-48U6DMICM/80: Fully Digital Congress System Delegate Unit (flush-mounting, discussion， HCS-48U6VOT and HCS-48U6SPK can be connected, black, stem microphone to be ordered separately)

HCS-48U6DMICS: Fully Digital Congress System Delegate Unit (flush-mounting, discussion，HCS-48U6SELM/80 needed, black, stem microphone to be ordered separately)