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portable power can charge for mobile phone.Butprevious portable power’s data line is too long ,inconvenient to carry and Occupy both hand,When we see the movie or other films,mobile phone can’t be held.
so we inprovement !Our hand treasure have stable strap ,people can put it on the hand .And it is more convenient to carry and move .it also can support for the phone whenever you want to see movies. such as in train or in car.
NingBo University of Technology