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The entire creature on earth needs respiration. Plants can breath carbon dioxide to produce oxygen with the help of sunshine, which is called photosynthesis.
Carry Tree follows this concept. The charger is designed as the tree shape hung on the bag or the pocket to receive the solar energy, just like that the plant needs sun to run photosynthesis to create oxygen.
Ming Chi University of Technology
National Taiwan University of
Science and Technology
Taipei Da'an Dist.,, Taiwan