Using this GEPRC DJI O3 Coaxial Cable is easy. First, make sure your DJI O3 Air Unit is powered off. Then, carefully connect one end of the cable to the appropriate port on the DJI O3 Air Unit. Connect the other end to your device that supports digital HD video. When using, avoid bending the cable sharply as it may damage the internal wires. Keep the cable away from heat sources and moisture. After use, store it in a dry and cool place. If the cable gets dirty, you can gently wipe it with a dry cloth.