Attach up to 4-cameras for comprehensive monitoring & recording ability H.264 real-time high compression & supports dual stream network transmission Supports remote view with mobile phones based on Symbian S60 3rd 5th edition Windows Mobile iPhone & Blackberry A See Application for remote viewing Avaliable from Apple App Store Supports pentaplex operation live view record playback backup & network transmission Supports real-time internet remote viewing with IE browser Easy to use Graphical interface Smart motion detection & recording schedule Standalone Linux 2.6 operation system ADPCM audio compression Supports USB (Universal Serial Bus) mouse Supports backup & upgrade with USB (Universal Serial Bus) flash disk Supports DDNSSupports audio transmission via network Supports control of PTZ pan tilt zoom cameras via built-in RS-485 port Selectable packing time for recorded files Supports editing camera title- Supports adjusting image color Event camera pop-up function Supports VGA output max. resolution 1920 x 1200 Alarm modes Motion Detection Video loss HDD full HDD loss Email alert function- With free-drag digital zoom functions for live viewing Supports up to 1 x 1TB SATA HDD