12 inches HD Screen Magnifier –3D HD Mobile Phone Magnifier Projector Screen for Movies, Videos, and Gaming–Foldable Phone Stand with Screen Amplifier–Supports All Smart phones. It has eye protection against blue radiation, no power. It will effectively relieve the discomfort and visual fatigue causing by long time focusing on small screen. The screen magnifier works just like a phone projector screen, effectively magnifying the size of your screen by 3 times so you can enjoy movies and videos on your smart phone to the fullest in HD. Silicone non-slip design ensures that the magnifying glass and the mobile phone will not slide. Pull-out magnifying glass prevents screen from scratching, use more comfortable, make the phone screen bigger and more dynamic, light weight, easy to carry, ultra-thin when folded.