Dome, 3K 20 MTR, High quality imaging with 3K, 2960 ? 1665 resolution 2.8 mm and 3.6 mm fixed focal lens Up to 20 m IR distance for bright night imaging Up to 20 m white light distance for bright night imaging One port for four switchable signals (TVI/AHD/CVI/CVBS?High quality audio with audio over coaxial cable, built-in mic Smart-Hybrid light, optimize your security with flexible lighting options