36 VDC & PoE (802.3at);Improve playback efficiency and be compatible with the AcuSeek and AcuSearch technologies of NVR for combined use;Support link to hikvision network speakers and network microphones to play audio;WDR, HLC, BLC, 3D DNR, defog, regional exposure, regional focus;Focuses on human and vehicle targets classification based on deep learning;Expansive night view with up to 150 m IR distance;25× optical zoom and 16× digital zoom provide close up views over expansive areas;1/2.8" Progressive Scan CMOS. High quality imaging with 4 MP resolution;High focus speed with self-learning focus technology keep the picture clear every single second;HIK AI-ISP for excellent noise reduction effect;