3M™ Privacy Screen Protectors for the Apple® iPhone® 3Gs (Portrait/Matte) utilizes 3M™'s microlouver privacy technology so you can use your smartphone in public without revealing confidential information. You clearly see your information on your phone while people at your side only see a darkened screen. With a light matte front surface, 3M™ Privacy Screen Protectors enhance your viewing experience by reducing glare and are easy to remove.