Function	Audio/video communication
	7.0 "TFT LCD Color screen
	Watch door entrance
	Remote lock release
	Inter-call with extended phone set
	Optional for extended camera or extended monitors
	Optional extended panel for apartments more than 24 in a building

Data of technology	working voltage: AC11V~220V
	working current: <400mA
	wiring: 4 wires
	Ambient Humidity: 45%~95%
	Resolution: 420(W)*380(H);
	Video Output: 15625Hz 1Vp-p 75Ω, PAL or NTSC
	installation method: surface mounting type