Sennheiser SL MCR 4 DW-4 4-Channel Speechline Multi-Channel ReceiverThe SL MCR 4 DW 4 supports Power over Ethernet (PoE) and Dante transmission so all of your audio, communication, and power can travel over a single network cable. No mismatched connectors or bulky hard to run analog cables are needed for integration, one Ethernet cable, and you're set. And if you're adding to an existing system, an auto mixer allows for all audio channels to be used as a sum signal available at the analog output, or digitally via