... mouse and front panel press button6.Smart video detection:motion detection,video blind,video loss7.Smart camera settings:privacy masking,camera ... working HDD hibernationg,HDD faulty alarm,Raid function11.Powerful network software:built-in web server,multi-DVR client &SNS Networking ... flying spot, thorn or thread type of interference in the video image that lead to image fuzz, twisted, snow, flicker, ...