Bluetooth sinks in

He walks through the mall barking orders into thin air.

She jogs down the street discussing dinner plans, but no one is jogging with her.

Speaking at a louder-than-normal volume, he goes about his daily business -- wherever he may be at the time.

At first glance, it looks as though the average person has lost his mind. But he's not talking to himself. And if you look close enough, you'll notice something peculiar attached to his ear -- something too big to be an earring, too colorful to be a hearing aid.

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