1.Ultra 4K, 24/7 full color imaging, with F1.6 large aperture lens,a visual feast 2.Support user-defined warning voice import 3.30m IR distance, 20m White light range 4.Abundant connection interfaces 1CH audio input / output, 1CH built-in speaker, 2CH built-in MICs,1CH alarm input / output 5.Dual system backup 6.Multiple intelligent events can be enabled simultaneously. Line crossing, region intrusion/entrance/exiting (human/vehicle classification), loitering detection, illegal parking detection, abandoned/missing object detection, Target counting by line/area, heat map, face detection and face capture, Video metadata.