The Rolls RM424 Switchable Four Zone Mixer combines two paging microphones with two line level source inputs. Each input is switch selected to output to any combination of four zone outputs. The outputs are all balanced XLR connectors, Remote Volume provides each zone with the means for external volume control. The Microphone inputs feature selectable ducking for paging. Front panel speaker makes pre assignment monitoring for each channel possible with individual switching for each channel. The RM424 is easy for anyone to use from the front, but from the rear it is just complex enough it will fill even the most demanding four zone installation requirements. With the included external power supply the RM424 has just about every approval known to man so you can spec it in almost any installation. The RM424 is the ideal solution for restaurants, offices, night clubs, etc.