The RC20 has a built-in high-quality HD CMOS sensor with 2.07 million effective pixels, which can obtain high-quality images with a resolution of up to 1920x1080. New CMOS image sensor with ultra-high SNR can effectively reduce the image noise under low illumination. The image maintains clean and clear even under ultra-low light illumination. 255 preset positions can be set, which is convenient for switching the main screen image, avoid manual adjustment.