... in open air 3.5 inch TFT color dispaly wireless video door phone VDP616+CAM206 AdvantagesWireless, easy to install, can ... Can store up to 255 pcs of photosl Audio and video transmitter unlock, monitor functionl Battery capacity. signal ,Temperature , Calendar on displayl ... monitorsl Can unlock the door remotely using separate electronic lockl Video and audio outputl Can store up to 255pcs of photosl ...