... DVR H.264 Compression real time -24CH video,16Ch alarm,8Ch audio - ... Network,Mobile surveillance,RS-485 PTZ control Key function:24Channel DVR H.264 Compression real time ... 1.Second-generation video compression of H.264(Main Profile)2.Six workers at the same time ... , Alarm, Motion detection, scheduled,contious,time,motion detection. 4ch playback.LanguageSimplified Chinese, ...