... variety of display modes: automatic round robin, full-screen, 4/83. Multiple recording modes: manual recording, time recording andalarm recording ... ,7. Live, recording, playback, backup & remote access8. Provide single / 4 channel audio function9. Support picture in picture display, OSD interfaces ... lens is optionalMinimum Illumination 0 Lux/F2.0 (LED ON)IR Status Under 10 Lux by CDSIR Power On CDS ...