. Empowered by deep learning algorithms Hikvision Acu Sense technology brings human & vehicle targets classification alarms to front- & back-end devices. The system focuseson human & vehicle targets vastly improving alarm efficiency & effectiveness Key Product Info. High quality imaging with 4 MP resolution Excellent low-light performance with powered-by-Dark Fighter technology Clear imaging against strong backlight due to 120 d B WDR technology Efficient H.265+ compression technology Focus on human & vehicle targets classification based on deep learning Built-in microphone for real-time audio security (-U) Water & dust resistant (IP67)