intercom phone Model: PST-VD972C Connection: 4 wire (Up to 4 monitors) 7'' flat color CRT monitor Light: 6 IR LED intercom phoneName: Vandalproof & Waterproof Handfree Color video doorphone for villaModel: PST-VD972CIncluding in one kit: One indoor monitor, One outdoor station, one adapter, one English user manual and one cable.Description:Vandalproof & Waterproof Handfree Working voltage: DC15V ...