From a Washington Post report on CES:

One little gadget debuting at CES claims to put truth detection voice analysis on the bridge of your nose.

"Voice Analysis Eyeglasses" provide real-time analysis on the inside of the lenses about whoever is talking at the time, says its maker, the Israeli company Nemesysco, which developed the technology for counterterrorism and government customers.

"A chip inside the glasses is able to read the voice frequency of the person you are talking to," said Beata Gutman, a spokeswoman for the company. "The voice is analyzed through that chip and there are lights that indicate whether the person is lying."

She said the truth specs were expected to be available at the end of January for $400-$500.