Single-family house kit Ciao with Mini HS Audio, SB2. This kit is completely pre-addressed to address 1 when delivered and only needs to be installed and connected electrically. It is also possible to split or quarter the bell button using a DIP switch code and convert this kit into a two-family house or four-family house kit by adding additional indoor stations and bell buttons. The bell buttons CA9213 and CA9210 required for this are included in the kit. For a four-family house kit, the bell buttons CA9211 must be ordered separately. This kit consists of: 1x door station Ciao Art. CA2100A, 1x power supply Art. 1209, 1x indoor station Audio Mini HS Art. 2738W/A, 1x bell button CA9213, 1x bell buttons Art. 9210. The kit Art. KCA2061A can be expanded to a maximum of 72 participants using the button module extension accessory Art. CA2200P.