Single front-door station for setting up a video door intercom system. You can choose between different colored high gloss glass optic indoor stations from VDV series. This video door phone system impresses with its sophisticated, ultra-flat design and excellent voice quality. The system is expandable to up to 4 outdoor and 4 indoor stations each. Regardless of the number of individual components, you only need one power supply unit to power the entire door intercom system. Address field and bell button of the stainless steel front-door station are automatically illuminated in the dark.