Using the Walksnail Avatar HD Kit V2 is easy. First, install the camera and VTX on your drone following the mounting holes (20*20mm for the camera and 25.5*25.5mm or 20*20mm for the VTX). Connect the power and USB cables as indicated. When flying, the system will start capturing high - quality footage right away. Make sure your drone's power supply is within the 6V - 25.2V range. Avoid using it in extreme temperatures outside - 20 - 40℃. For maintenance, keep the kit clean and dry. If there are any issues with the 8GB storage, you can transfer the recorded 1080p/720p videos using the USB transfer extension cable. Also, check the antenna regularly for any signs of damage.