The PGX1 is a paging station extension by using with PGM1 paging station microphone that can be used with the MTX5-D or MRX7-D. PGX1 can be networked via a Dante network and PoE (Power over Ethernet). Two PGX1 units can be added for each PGM1 unit, allowing you to specify broadcast regions in detail and to select from numerous messages.