Portable Monitor for Laptop 21.5-inch Large Screen Portable Display HD 1920 * 1080P Extended Sub-Screen Portable Gaming Monitor

- The portable monitor of a laptop can be used as a sub screen to improve your efficiency. The perfect choice for travel or entertainment. - 21.5-inch large screen, lightweight and portable, equipped with a 1920*1080 resolution large screen, designed to create a wider viewing experience. - Portable monitors can perfectly serve as your second monitor to improve your work efficiency. With this monitor, you can handle multiple tasks at the same time. - Wide compatibility, no application and driver required, can be easily connected to most mainstream devices on the market. - Can be used as a screen extender for gaming monitors, laptops or mobile phones. - Built-in speakers for a better audio and video experience.