The BlackBerry Leather Pocket is a form-fitted case designed to protect your BlackBerry smartphone and its camera lens from bumps and scratches. It also features a magnetized proximity sensor, intuitively enabling your smartphone to know when it is inside its case, and instinctively turns off the screen to conserve power and maximize battery life. It also allows you to automatically switch to different notification settings for incoming calls, emails, and other functions based on whether your device is in or out of its case.