Apple's biggest event of the year is happening next week - here's everything it's expected to announce

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Tim Cook, CEO of Apple.

• Apple is holding a special event on September 10, where it's expected to announce new iPhones, a new Apple Watch, and more.
• The biggest new feature reportedly coming to the new iPhone will be a triple-lens camera that can capture photos with a wider field of view.
• We may also learn more about Apple's streaming TV service that it initially unveiled in March, as well as software updates for the iPhone, Mac, and other products.
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Apple's new iPhone is set to be unveiled next week.

Apple is holding an event on September 10 at the Steve Jobs Theater on its Apple Park campus, where it's expected to make several announcements about upcoming products- the biggest of which will likely be the debut of three new iPhones.

Apple is launching its new iPhone - as it has done every September since 2012 - at a time when the smartphone market has been in decline for seven consecutive quarters. With iPhone sales dwindling, the Cupertino, California-based technology giant has increasingly focused on other burgeoning product areas such as its services and wearables division. We're likely to hear more about what Apple has in store for those product categories as well.

Here's everything we're expecting to see from Apple CEO Tim Cook and his crew of execs at the big event, which starts at 10 a.m. Pacific on Tuesday.