DVR 400 IPS (PAL), 3G & GPRS, Motion/Alarm Triggered e-mail, 2 Way Audio Transfer, VGA Output, USB Flash Drive, CR-R-RW, 2 x HDD, MPEG4, Remote Control, RJ-45, SSP/PELCO-D PTZ Protocol, Multi Language 1/4" Indoor/Outdoor High Speed Dome Cameras 520TVL or above 36x OZ, 3.4 to 122.4mm, 16x Elec. Zoom, Automatic Moving Object Tracing 1/4" Mini Dome Zoom Cameras 520TVL or above x2.6 motorized zoom CCD with Approx 470,000 picture elements PTZ Joystick Controller RS-485, RS232C (PC), 42 buttons, 3axis joystick, 2400,4800,9600,19200 bps, RJ-11 Terminals: Video x 1, Telemetry x 2, 256 units in 1 system, Controller 5 units, HDD Digital recorders 98 units total, Multi Language