As a second communication level, the modern office communication system D9000 offers many features that can not only be easily adapted to your circumstances, but also significantly shorten your internal communication channels.Product features:Loudspeaker connection unitPrint suitable for connecting loudspeakers (4-8 ohms) or external amplifiers For installation in distribution boxes or similarTechnical data:Dimensions: 80 x 45 x 18 mmInstallation instructions:Note: