Varifocal DC-iris lens. 1/4" progressive scan CCD. Down to 0.75 lux. Up to VGA 640x480 resolution at full 30 fps frame rate. Motion JPEG and MPEG-4. Video Motion Detection and I/O for alarm/event handling. Audio full duplex G.711 with built-in microphone. Power over Ethernet. Includes adjustable stand and power supply.