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There are a lot of earphones that we are using in our surroundings.
However, these earphones should be bought frequently as their ear-plug parts are broken for being tangled or separated with other objects in the bag or clothes. Furthermore, ear fatigue is more serious than expected due to their stereo-typed configuration. This earphone design is focused on a new functional structure for ensuring more closer bodily contact and easy undoing in case of tangling.
changwon national university
changwon, South Korea
lee duck sang
gyeongnam changwon city, South Korea
kong hye chin yang yoon sun