To use this 7 - inch monitor, first connect it to your device using the appropriate cable. Since it doesn't include a power supply, you'll need to use your own compatible one. When you're done using it, turn it off properly to save energy. Keep the monitor in a dry and clean place. Avoid exposing it to direct sunlight or extreme temperatures. Wipe the screen gently with a soft, dry cloth to keep it clean. Don't use harsh chemicals on the screen as it may damage the display.