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KNOCK KNOCK / Trash can


Science and Technology are very developed nowadays,everyday life in the modern world becomes more and more uninteresting.
KNOCK KNOCK trash can is hope to improve this situation.
Unless it senses there’s garbage in, it will starting broadcast sounds.
It makes user obtains pleasure.
Add FUN to every day life!


Chaoyang University of Technology

Chaoyang University of Technology
Douliu, Taiwan

Ru-Shan Lin,
Chaoyang University of Technology