Optimum Vision Multiviewer shows different signal sources simultaneously in one screen, plus some extra information such as channel names, real time clock, etc. So, it is useful in places like TV studios or security centers where a number of video & audio signals should be monitored. Multiviewer not only can save space & money, but also can place all signals directly in front of the operator.  Optimum Vision  Multiviwer IRIS has many models which give the customers flexibility to decide how many signals and what kinds of signals they want to monitor.