With a viewing window and on/off function. This stylish and smart flip case protects against bumps and shocks and fits better in your hand, reducing the risk of dropping it. It also features a smart function that turns the screen on and off when opening and closing the case, as well as a window that allows you to easily see notifications and incoming calls. When the phone needs to be charged, the case can be easily removed so the phone can be placed in the desk charger. The screen is also visible even when the case is closed. It protects the back and edges of the phone. Perfect fit.