iPhone 7 launch: Apple gambles on headphone jack and introduces new Apple Watch

New design paired with release of AirPods that represents characteristic gamble for tech firm in bid to outpace rivals and usher in wireless listening

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Apple signed the death warrant for the headphone port on Wednesday afternoon, ushering in - it hopes - a new tangle-free era of wireless listening. But the move is a bold one for Apple, and one that tech pundits predict could have consumers staying away in droves.

The world's biggest tech company had been widely expected to kill off the headphone jack at the a launch of the iPhone 7 in San Francisco. The 138-year-old technology will be replaced by headsets that plug into the device's Lightning connector, which is also used for charging.