Using this JVC camcorder is quite straightforward. First, if you have your own power supply, connect it to the camcorder to start using it. When shooting, adjust the settings according to your needs. As for the fan hour warning, although it doesn't affect the functionality now, you should keep an eye on it. Regarding maintenance, keep the camcorder in a dry and clean place. Regularly check the connections and clean the lens with a soft cloth. And always remember that only the items shown in the pictures are included with the product.