... %RHWelcome ODM,OEM order!1/4 sony color ccd,480 TV Lines, IR-CUT FUNCTION , Day&night, 27x Zoom camera, High speed dome ... Conductive slip ring, High-quality belts, Stable operation, high reliability.3, Stable running, none dithering under any speed.4, Cover use ... , effectively raising the speed dome mine and anti-jamming capability Effio-E CCD ONVIF dome camera