The Kapsolo 2-Way Privacy Filter prevents visual hacking attacks from the left and right at a 60% viewing angle. The snap-on, removable privacy filter is applied directly to the screen according to the installation video guide and can be removed and reattached in seconds without leaving any residue. This Kapsolo privacy filter covers the entire screen from edge to edge and is in standard size. The filter stays in place and does not move when you move or close your device. Safe from prying eyes everywhere: on the train, bus, airplane, airport, office, conference room, café, school, or home - no worries when using your phone, laptop, or monitor. It protects your sensitive, confidential, and private data from visual hacking attacks - productive and comfortable anywhere. Reduces blue light by up to 50%. The touchscreen, HD display, and dual-screen functionality remain 100% intact. The screen protector also shields your screen from scratches, is shock and drop resistant, and prevents dirt, stains, and fingerprints from easily sticking.