Noise-canceling headphones are great for tuning out the din around you when you just want to focus on listening to music or enjoy some peace and quiet. Unfortunately, they also mute sounds that you might need to hear – like someone calling your name. Amazon has a pretty cool idea for solving that problem. Earlier this month, it was granted a patent for headphones that not only cancel out noise, but also listen for specific sounds or phrases (like ‘Hey Ben’) and respond by automatically turning off the feature so the user can hear sound from their surroundings. That should make it…

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