Using your Bambury Super King electric blanket is easy. First, plug it into a power outlet. Use the dual controllers to set your preferred heat level. There are three heat settings, and you can tell which one is on by the raised dot indicators. When you're done using it, unplug it from the power source. For cleaning, you can safely wash the blanket because the controllers are detachable. Just make sure to remove them before washing. Keep in mind that this blanket has an over - heating safeguard system, but it's still important not to cover the blanket with heavy items while it's on. Store the blanket in a dry place when not in use. If you have any issues, the blanket comes with a 2 - year warranty, so you can get in touch with the customer service.