LAS VEGAS (AP) — People who don't want to disturb sleeping family members could use a new product from Panasonic that doesn't need speakers or even your own ears: wireless bone-conduction headphones.

The headphones connect to a TV via the Bluetooth wireless standard and attach to your head like a normal set of headphones. But instead of using your ears, the headphones work like hearing aids by transmitting sound waves through your skull.

They are one of several innovations Panasonic unveiled at the International CES show in Las Vegas. It also showed off a new user interface for its "Smart Viera" TVs, featuring a TV-mounted camera that recognizes the user and sets viewing preferences accordingly.

The Japanese electronics maker also showed off an easy way to send YouTube videos from smartphones to the TV.

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