... P2P technology, need no port mapping, save bandwidth, cell phone video monitor Multi software(free) 1, 4, 9, 16, 25, ... -channel multi software, no user limited professional software, centralized monitor, remote record and playback, Skype message alarm, Skype telephone ... 30fps NTSC Resolution VGA (640*480), QVGA (320*240) Video adjustment Brightness, contrast, chroma, saturation. Minimum illumination 0. ...