Built-inHD 20X zoom chassiscamera option Samsun Sony Hitach chassis camera, H.264MJEGis optional, dual streaming, highcompression ratio, and high quality, Support AWB, AGC, BLC, brightness, chroma, saturation, sharpness adjustment, Manual control of speed and lensfocal length is proportional, ensuresmooth and accurate search target, Horizontal rotation range: 360, Vertical rotation range :90.