how to charge mobile phone without electricity|How to charge a phone with out charger

06:03 shaheer urdupoint 0
Without electricity it is impossible to charge any phone.But three Pakistani students have invented a method through which any one will charge his/her mobile phone through sound waves. As any one will talk to other through his/her cellphone his/her phone will start charging battery and as long as he/she will talk the battery charging will continue.
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