... and maintenance. Nice design , flexible, and fast operating ..Integrate keyboard easy for control the PTZ .saving space and connections .9 ... wireless module like 3G (EVDO, HSPA, HSDPA, TD-SCDMA^), GPRS, WiFi^optional. . Adopt special UPS technique for sudden power down once ... & close modes: ACC signal, timed, time delay close, manual mode. Mobile DVR with Monitor and Control keyboard.ALL-IN-ONE