Which product holds the Guinness World Record for the fastest-selling consumer electronics item, selling 8 million units in its first 60 days on the market?

The retail world has its own share of impressive world records - from massive shopping centers to extraordinary consumer behaviors. This trivia challenges your knowledge about exceptional retail achievements that have made it into the record books. Test your understanding of remarkable consumer products, retail innovations, and shopping phenomena that broke boundaries and set new standards in the retail industry.

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Apple iPhone 6/6 Plus
Microsoft Kinect
Sony PlayStation 4
Amazon Echo