Yes. Because Technomad’s wireless systems are designed to be robust and require zero programming to use, we do not employ a computer-based “zone-control” system. The operator can select any zone that needs to be addressed (or “all zones”) right at the Technomad control rack. The wireless receivers are pre-set to zones, and reproduce audio locally only when their zone is addressed or when “all zones” is selected. NOTE: the Technomad system also allows two transmitters to address one receiver – for example, if two guard posts need to send warnings to a central PA.