Boffins create battery free mobile phone
 

Runs off radio signals

US boffins have emerged from their smoke filled labs with a prototype of a battery-free mobile phone.

The phone is the work of a group of researchers at the University of Washington in Seattle and works by harvesting tiny amounts of power from radio signals, known as radio frequency or 'RF' waves.

http://fudzilla.com/news/mobile/4426...e-mobile-phone