The Magic Touch Tempered Protector build-in a special circuit, connects the device space of the lower left corner and upper right corner with the top left conner and top right corner on the screen. And these two buttons are the position of most IOS APP for back button and confirm button, most iPhone 6 Plus users are hard to reach the return key on the topleft and the confirm key on the top right, no app, no extra device, only need a tempered glass screen protector, then everything is under your cotrol.