... intput 3G Real time 4ch H.264 Standalone DVR RecorderZS-3504HS ItemSpecificationsModel nameZS-3504HSVideo standardPAL/NSTC(optional) ... Internet watch, Internet DVR PreferencesSet ,alarm triggered ,emailMobile monitorSupport Symbian, WinCE, I phone, Google, Mobil phone monitoring of BlackBerry ... 600,1024×768,1280×1024,1440*900Network interface1 Ethernet RJ45 10M/ 100MPTZRS485×1,PELCO-P,PELCO-D, Support ...