It is designed to allow lighting and sound operators to be able to see the performance, without being in the auditorium itself. This means that they are free to talk to their colleagues in the booth, and also the Stage management team and other crew members via the communications headset. A booth that is sealed to the auditorium also allows for noisier equipment to be used, in particular computers and computer-based lighting desks, which require built-in fans in order to work properly.