Confidentiality is a human nature; however, our devices expose this when in public. Curiosity from wandering eyes is undoubtedly uncontrollable. People sitting beside you or passing by tend to intentionally and unintentionally take a quick peek at your screen for many reasons. ViaScreens Privacy Lite (Portrait) for Microsoft Surface Book 3 (13.5) is a 2-way privacy protector that helps protect sensitive information from prying eyes by narrowing the viewing angle so that the screen is only visible to individuals directly in front of the screen. This is achieved via the embedded micro-louver technology that blacks out the screen at an angle of 30 degrees either side of the lit display when the screen is in portrait orientation without blurring or image distortion. ViaScreens Privacy Lite (Portrait) adheres firmly to the screen with its advanced silicone based adhesive backing offering an exceptional matte surface that reduces glare from ambient light. The pack includes a privacy screen protector for Microsoft Surface Book 3 (13.5) and an application kit.