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30 billion plastic bottles are thrown away every year and the most of them end up in landfill. It becomes a major hazard to our environment.
The Re-Sound aims at giving the waste bottles a second life to be something useful. It is a small box which can be linked to bottles. Without high-technology and even electricity, it can reduce the loss of sound waves, and sounds can be scattered through the holes on Re-Sound and the bottles.
Huang Yichen, Liu Yi, Ye Peng, Shen Yuebo