Kensington FP133W9 Privacy Screen for 13.3" Laptops (16:9)Limited Viewing Angle Narrows the field of vision on the screen to + 30 degrees, helping you keep the information on your screen private and reducing the chances of a visual data breach, which is important both in the office or in a public setting Blue Light Reduction Filters out the harmful rays by up to 30%, easing eye strain and reducing the chances of blue light interrupting your natural sleep patterns Installation Options The privacy screen can