Support memory card U disk and mobile HDD up to 2TB; Compression algorithm upgrade to H.264 Main Profile adopt advanced space-time filtering techniques; The main and auxiliary two code stream with coding synchronization function the main code stream local-storage make sure the image quality and auxiliary stream network real-time transmission; Support cellphone monitoring (iPhone Windows Mobile BlackBerry Symbian Android); Support web browsers (IE Chrome Firefox Safari); Support 2 x USB 2.0 interface stable implement USB mouse video upgrade etc; Support VGA and TV output synchronization HD VGA output; Strong web service (support DHCP PPPOE FTP DNS DDNS NTP UPNP EMAIL IP search alarm center etc.); Perfect supporting (WEB client-side SDK); ARSP function; Perfect protection circuit unique triple watch-dog function; Languages: English Finnish French German Greek Italian Japanese Polish Portuguese Russian Spanish Thai Simplified Chinese Traditional ChineseTurkey etc.