To use this Panasonic display/viewfinder, simply connect it to your device. Make sure to use the appropriate cables for a stable connection. When you're done using it, turn it off to save power. For cleaning, use a soft, dry cloth to wipe the screen gently. Avoid using harsh chemicals as they can damage the display. Try to keep it in a cool and dry place to prevent overheating and moisture damage. Check the connections regularly to ensure there are no loose parts.