The Kapsolo 2-Way Privacy Filter prevents visual hacking attacks from the left and right at a 60% viewing angle. The plug-in, removable privacy filter is attached directly to the screen according to the installation video instructions 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 fits standard screen sizes. 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, plane, at the airport, in the 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. It minimizes blue light by up to 50%. The touchscreen, HD display, and dual-screen functionality remain 100% intact. The filter also protects your screen from scratches, is shock and drop resistant, and prevents dirt, stains, and fingerprints from sticking easily.