Swan Crystal IPS LCD conversion, color change possible, brightness adjustment possible. Purchased last September. The main body is clean. A screen film is applied, but I don't have any spares, so if you're concerned, please purchase a separate film. Each button works fine. Earphones can also be used. The built-in speaker is also fine. Top of the screen: Left side adjusts brightness (10 levels). Right side adjusts color tone (7 types). Price negotiations are welcome. If you have any questions, please ask.