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A police officer is silhouetted against the Apple logo in Grand Central Terminal in the Manhattan borough of New York January 13, 2015. Reuters/Carlo Allegri

Apple has already sent media invitations for its upcoming launch event that will be held on March 21. The company has announced that it will be live streaming the event so that viewers across the world can view the latest announcements on their PCs and mobile devices.

How to watch the Apple event? Apple’s launch event will begin at 1 PM ET on March 21 (5 AM AEDT on March 22). Owners of iPhone, iPad or iPod Touch running no iOS 7 or higher can watch the live stream unveiling event. The event will also be viewable on Safari browser on Apple devices. Mac devices running on OS X 10.8.5 or higher with Safari browser can be used for watching the launch event, Fortune reported.

PCs with Windows 10 onboard can be used for watching the live event through its Microsoft Edge internet browser. It means users of Windows 8.1 and Windows 7 will not be view the launch event unless they upgrade to Windows.

What is Apple going to announce on March 21? The company is heavily pegged to unleash a 4-inch smartphone called the iPhone SE as well as a successor model for the iPad Ai 2 called iPad Air 3. The iPhone SE (Special Edition) will be powered by Apple A9 chipset and 1 GB of RAM. Other specs of the small-sized iPhone include Touch ID sensor and 12 MP rear camera.

There are other speculations suggesting Apple's new tablet will be a smaller version of the 12.9-inch iPad Pro, so it will reportedly be called the 9.7-inch iPad Pro. It is expected to feature Apple A9X SoC and 4 GB of RAM under its hood. For delivering best entertainment experience, it will be featuring four sets of speakers. It is also going to be the first tablet from Apple to come with an LED flash for its rear camera.