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