... -Audio,Alarm,VGA,USB,remote control,internet 4CH H.264 CCTV DVR Stand alone with external network access Features: 1.Second-generation ... large-scale centralized management of the video 5.Support IE ,remote parameter settings, preview, download video data 6.Dedicated high-reliability ... need to apply for any DDNS domain names, network access 9.A powerful mobile control and monitoring features to support ...