Features: User can view image through IE or DDNS to realize the real-time surveillance and playback Supports internet listening, internet broadcasting, two-way audio function, built-in microphone, and speaker Support local and Internet storage, built-in microSD port, integrated with many Internet storage protocols, supports network hard disk function Integrated wireless alarm gateway function, supports various kinds of remote controllers and wireless detectors Supports local, central, network, mobile message to set alarm on/off Supports emergency function for help, user can ask for help through remote control or panic button Supports alarm linkage, works with wireless alarm and video surveillance to improve the efficiency and accuracy Supports local and Internet alarm, once there is a trigger alarm through sensors, the video recording will be active, and start to record the spot picture and video automatically, they are stored in the preset storage equipment as TXT and JPG format Supports mobile alarm, it can send alarm message and pictures to the preset mobile number