Tech Tent Podcast - From CES in Las Vegas

Rory Cellan-Jones presents a special programme from the CES technology trade show in Las Vegas. He speaks to the company behind an alarm clock that wakes you up with pleasant smells, and another showcasing the latest drone technology. We also hear from Faraday Future, a company that wants to revolutionise the car industry, and BMW on how traditional car makers are responding. And Rory also looks at how Las Vegas hopes to be a pioneer of solar energy technology.

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