Carry your BlackBerry® Smartphone in style with the BlackBerry Tote. Attach it to your handbag or clutch it while you"re out shopping, dining or clubbing. Or remove the strap to convert the tote into a pouch and carry it into the office. Finished in premium lambskin leather, the tote features a built-in proximity sensor, so it knows when your BlackBerry device is in place � and automatically shuts off the screen in order to help maximize battery life. This technology also allows you to choose different notification settings for incoming calls, emails, and other functions based on whether your device is in or out of the tote. Plus, grooves that run along the inside of the case protect the trackball.