Two-family house kit Switch with Mini Handsfree Wi-Fi, SB2. This kit is fully pre-addressed in its delivery state and only needs to be installed and electrically connected. A maximum of 4 indoor stations (audio or video) can be installed in master/slave mode per participant. The Mini HF WiFi is equipped with a WiFi module that allows the indoor station to connect to your own WiFi home network. The Comelit app must be downloaded from the Google Play Store or Apple App Store, and the smartphone must be connected to the indoor station via smart registration. This enables video doorbell functionality, including audio communication, to be accessible over WiFi and 3G networks. This kit includes: 1x Switch front plate Art. IX0102, 1x UP housing Art. IX9150, 1x Video speaker Art. 4681/4, 1x Power supply Art. 1210A, 1x Mini HF WiFi Video indoor station Art. 6741W, 1x Terminal block Art. 1214/2C, and 1x Termination resistor Art. 1216.