DeFIBulator is a portable lie detector that uses voice tension technology to measure the voice vibrations and detect the probablity of someone lying. These vibrations are caused by the user going from a state of calm, to being a little nervous as you would when you lie, just like a polygraph test.

 
The DeFIBulator that can also be connected to a cellphone is made by Spion, a Singapore based company which claims this portable lie detector  to have an accuracy rate of 65%. We aren't sure how much this gadget can  detect truth, but rest assured this could be a lot of fun in parties, especially due to the the LCD display which displays a small devil's face whose nose grows and horns appear if someone is lying.  Grab it for US$ 49.95 from Gadget Universe .