Do you ever find yourself wishing there was some use for all your pent up rage?
Well, researchers have developed the technology to convert sound into energy for mobile phones – so you’re in luck!
You don’t have to actually scream, though louder sounds create more energy, but even loud cheers or noisy chatter in a restaurant could charge your phone.
The device is about the size of the Nokia Lumia 925, and revolves around rod-shaped generators sprayed with zinc oxide, which creates electricity when it is flattened or stretched.
Apparently this technology could soon be used to keep air conditioners going, aswell as computers and even buses and trains!
We’ve got to get ourselves one of these things – any excuse to shout!