Hikvision 4MP IP Colorvu Bullet – DS-2CD1047G2-LHikvision ColorVu technology provides 24/7 vivid colorful images with F1.0 advanced lenses and high performance sensors. F1.0 super-aperture collects more light to produce brighter images. Advanced sensor technology can vastly improve the utilization of available light. High quality imaging with 4 MP resolution 24/7 colorful imaging Support Human Detection Water and dust resistant (IP67) Clear imaging even with strong back lighting due to 120 dB WDR Efficient H.265 compression technology Support on-board storage up to 256GB (SD card slot) (Optional) Built-in microphone for real-time audio security (Optional)