Single-family kit with smart Wi-Fi doorbell complete with power supply unit. A'er connecting to the Wi-Fi network, you will be able to receive calls straight to your smartphone and tablet using the Comelit app. With the Comelit app you will always be in touch with what’s happening at home, whether you are out and about in town or even in another country. The Kit consists of 1 Visto ViP Wi-Fi external unit art. VS8111 and 1 power supply unit art. 1595.