When you say I don't know whether it's a door-to-door screen (that is, you usually see words walking), it depends on what module is used. P11 module is commonly used. Red is cheaper and more conventional, other colors will be more expensive, and color is the most expensive, depending on which one! The local price may be more expensive! It is cheaper to ship from the manufacturer, but you should install it yourself! Red is basically around 1 thousand per square meter!