Technical Index: (1) Video Compression: MPEG-4 compression (2) Video Input: 4 ch video input, system supports 4 cards at most, thus forming 16 channel, 100fps system (3) Display FPS: 25 fps in PAL, 30fps in NTSC (4) Recording FPS: 25fps in PAL, 30fps in NTSC (5) Resolution: 640x480, 320x240 (6) Compression:60M to 100M per channel per hour (7) Playback: Different speed selectable Support transmitting the video signal through LAN, PSTN, ADSL, ISDN, etc. Support skimming and playback over image at long distance Can transfer through telephone line (8) IO Alarm 4 input, 3 output (9) Operating System Windows 98/2000/NT/XP (10) Software support 12 languages /pico.htm