"Single- and two-family audio kit for traditional 5-wire systems. Can be configured for single-family or two-family installations The kit can be expanded in its single-family version with 1 outdoor entrance panel. Option of adding a door-entry phone in parallel for each user. Suitable for installation in homes, commercial properties or offices. The kit is supplied ready to use. It consists of 1 Ciao series outdoor entrance panel art. CA5100B equipped with call button art. CA9214, 1 Mini series door-entry phone with handset art. 2702W and all accessories required to create the system."