With a 16:9 aspect ratio and 1366 x 768 resolution, the JOHNWILL 13.3" Portable Computer Monitor offers a high-quality display that is perfect for desktop use. Its TFT panel, 155° horizontal viewing angle, and 85° vertical viewing angle provide excellent image clarity from any angle. With a brightness of 250cd/m and a contrast ratio of 800:1, this monitor ensures that your content is vibrant and clear. In addition, its built-in speaker and 4ms response time make it a versatile and reliable choice for any desktop application. Plus, with its HDMI-compatible interface and CE certification, you can trust in the quality and performance of this product.