Using this Foxeer Reaper F4 Slim Mini ESC is easy. First, make sure the input voltage is within the 9V - 40V range, which is suitable for 3 - 8S Lipo batteries. Connect it to your device using the supported input signals like DShot 150 or 300. When it comes to installation, use the 20x20mm mounting hole with M3 screws. Here are some important notes. Don't use it in temperatures below - 20℃ or above + 55℃. Keep the humidity between 20% and 95%. For storage, make sure the temperature is between - 20℃ and + 70℃. To maintain this ESC, check it regularly for any signs of damage. If it gets dirty, use a soft brush to clean it gently. This will help it work well for a long time.