Handsfree 7'' TFT Color Video Door Phone

-TFT Color Video door Phone,

-7" TFT LCD monitor,

- Door lock opening,

-Bi-directional Speaking system,

-2 or 4 wire polarity,

-Operated by DC18V external adaptor.

-Contrast, brightness, volume control.

-Unit size(indoor unit): 254.8 x 164.5 x 32mm.

-Front Frame of the monitor can be in different color plastic plate