* Adopt advanced DSP (digital signal pixel) technology & huge software for up-grading on-line. * Support multiple video output interfaces. * Easy installation and adjustment, built-in motion detection. *Operation safety, can be set for 3 popedoms and information concealment. * Support more person motion detection on line. * Support manual rate, frame and HBR setting function. *Support removal motion detection, send email to specified mailbox. * Support P/T/Z agreement and preset. * Support alarm input / output function. * Support multiple channels, full screen & circle display. * Built-in hardware lock function, avoid random by peoples. * Support live playback function. * Restore default、technical specification can save at computer.