HD digital DVR -H.264 realtime hd dvr -USB,PTZ,Audio,Network,VGA,HDMI -720P DVR HD realtime recording -CMS/IE ... Features: 1. H.264 Real-time Recording, support USB, PTZ, network, two-way audio, VGA, HDMI;2. Support mobile phone live preview ... (mm) 405(W) * 55(H) * 320 (D) Weight4.5kg HD Digital DVR