Intercom device with conveyed waves with 2 conversation channels, gray color

Intercom device with conveyed waves with two conversation channels, which allows conversation between two or more rooms or zones, using the 230Vac electricity distribution cables for interconnection between the various devices. It is therefore sufficient to insert the plug of an Intercom device into a normal power socket to communicate with the other Intercom devices connected to the same network and on the same phase. The package includes only one device.