The CU-300 Control Unit is the core of the ENERSOUND CS-300 Conference and Discussion System controlling chairman and delegate microphone units, as well as other audio inputs and outputs. It also supplies power for up to 50 delegate and chairman units...

The CH-300 Chairman Unit enables the chairperson or moderator to participate in a discussion by speaking through a microphone. It can be activated or deactivated by pressing the microphone ON/OFF push-button. The chairperson can listen to the discussion...