Using this gaming keyboard set is easy. First, plug the USB cable into your computer. Once connected, you can start using the keyboard and mouse right away. To switch the tri - color backlight, just look for the dedicated key on the keyboard and press it. When using the keyboard, avoid spilling liquids on it as this could damage the internal components. For maintenance, use a soft, dry cloth to wipe the keyboard and mouse regularly. Don't use abrasive cleaners as they may scratch the surface. Keep the keyboard in a clean and dry place when not in use to ensure its longevity.