Microphone Sequencing
      As delegates approach floor microphones, they push a button affixed to the microphone stand. This enters the delegate into a queue so that the speaker can recognize each delegate in order. This is particularly useful in large meetings in which the speaker may be partially blinded by stage lighting.

      If desired, certain microphones can be given higher priority (such as a microphone set aside for points of order), so that such high priority requests automatically jump to the top of the queue.

      Of course, the speaker can recognize a delegate out of order, and then return to the original sequence.