Bluetooth logo has HIDDEN message you probably didn't know about

IT’S used by everyone with a smartphone and has been a household name for 28 years. But although almost everyone has heard of Bluetooth, few people know the curious story behind its name and …

Bluetooth logo has a hidden message and people can't unsee it - Mirror Online

If You Wear Headphones with Your iPhone, You Need to Know About This « iOS & iPhone :: Gadget Hacks

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