Where is the place is best for receive solar energy in a human body? the answer would be at the top of our head, the nearest the better? Perhaps. A student at the Transylvania University of Brasov, Shepeleff Stephen  developed a Bluetooth headphones, called the Q-SOUND, which charge themselves using the energy of the sun that beam to our head.

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The Q-SOUND is a Bluetooth headset which could be used with any Bluetooth-enabled device such as digital audio player/MP3 player. It is not only can the user listen to their music, but he or she can also take phone calls from a Bluetooth enabled mobile phone. There is also a 3.5 mm jack included in this headset for in case Bluetooth isn’t available.

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There are two removable rechargeable NiMH batteries with an electric capacity of 800mAh and operating voltage of 1.2V operate as the eccentricities storage. And a full charged headset is able to run for up to 40 hours.  For Q-SOUND headphones, one hour of sun yields more than 2.67 hours of working at maximum volume selection.

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Although Q-SOUND is only in conceptual stage, but I think this idea will eventually become a real product.