hands-free video door phone

hands-free video intercommuncation,black and white 4"flat display screen,colorful 3.5"and4" TFT display screen,monitoring,calling,alarming and unlocking function,it can be connected to secondary confirmation outdoor unit,support parallel connection of indoor unit,be equipped with one-way immediate-alarming security area,outline dimension:225X170X40mm,installation mode:wall-hanging mode

hands free video door phone:

hands free video door phone:black and white 4"flat display screen,colorful 3.5"and4" TFT display