1.Manufacturer,CE,FCC,SGS,ISO,CCC 2. 27X optical Zoom 3. 9 years manufacturing experience Features n 27X optical zoomn Uses high quality step motor & professional drive circuit to ensure the long working life, high stability and the smooth rotating of the camera.n With backlight compensation (BLC) functionn Brief & compact design on hardware & software to decrease the failure rate.n With 128 ...