1. Attention before --- AHD Backup Camera supports only AHD 1080p 25Hz. According to our experience, some Android head units have a setting for the AHD video signal, but the truth is that they cannot view any AHD image, because they never support AHD. If so, you can only apply the CVBS video signal, I hope you will understand. While the CVBS video signal is applied, the resolution is 720p (1280720) and the view angle is 120 degrees 2.Ahd 1080p car backup camera --- 1920x1080 pixel resolution, more stable video signal transmission than CVBS video signal camera, ahd video signal that provides less intervention and delay. High definition, 170 degree imaging angle, no worry about the blind spot area, IP68 , Car Washing or Bad Weather Works properly, Fantastic Night Vision Effect, 0.01 Luxury Star Light Night Vision The 3rd cure-rotating metal camera body ---- Roting provides a high clarity appearance to adjust the Roting Camera only to rotate. To find the viewing angle with the help of a mini key, you don't have to worry about the very high or very low image shown on the monitor. Mini Design, Solid Shinning Metal Conservation, Shock -Trust, Longer Service Life 4. Cut the three switch cable camera-white cable mirror image (back view) to change the non-mirror image (front view). Cut the orange cable to change the AHD video signal to the CVBS video signal. Cut the green cable to close the guide line. Please re -connect the power supply after cutting any cable, and if necessary, you can connect it back after cutting the cable.