Nana made out the cigarette-lighter flick, the deep, first-of-the-day inhalation.

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The car's cigarette-lighter receptacle may have humble origins, yet these days it powers just about every gadget that gets taken on the open road smartphones and tablets, radar detectors and GPS units alike.

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These drives are based on flash memory - which stores data even after its device is turned off - and are about the size of a large cigarette lighter.

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It will include a cord to connect the unit to the cigarette lighter for power and on that cord is a speaker that will play the voice prompts for turn-by-turn directions.

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