1. H.264 video and G.722 audio coding2. Android OS V5.1 operating system3. Display: 7 "IPS LCD with weighing 1280x800Camera: 3 Mega pixels, auto light..
Capacity:Extension port is 16-88 lines,trunk port is 4-10 lines, Max port total capacity is 92 lines(4 Co lines 88 Exts) or 82 lines(10 Co lines and 7..
Specifications:•Fits standard 14mm hole from mechanical door viewer•Door thickness 40-70mm•3.5" LCD screen•4 pcs. AA batteries•Viewing angle 105 degre..