The UK mobile carrier Orange and the renewable energy company Gotwind has teamed up to create a prototype charger called Sound Charge T-shirt  that turns sound waves into electric energy, which is stored up in a small reservoir battery that connects to a mobile phone.

The wearer can thrash around in a mosh pit while simultaneously charging his cell – developers estimate six watt hours of power for sound levels of around 80 decibels, or the same noise level a bustling city street.

Related: Pan Charger – Mobile Phone Charger that Needs No Electricity

How the Sound Charge T-shirt works

The Sound Charge t-shirt prototype is a modified A4-sized panel of Piezoelectric film at the front is said to act like an oversized microphone, absorbing sound waves and converting them via the compression of interlaced quartz crystals into an electrical charge.

This is then fed into a small external reservoir battery (with visuals that pulse in time with the music) and the wearer can then pop a mobile phone or smartphone into the pocket above the panel, connect it up to the reservoir and top up the device battery using sound.

You can watch the video below for more information on the product: