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Commonesses of Headphone and Speaker are listening music and changing digital signal to sound. Triangle is efficient product which can be changed to two types, speaker and headphone. Triangle has two aims, one is communicaion with others. In fact, many people want others to listen music what they like. They wish to communicate naturally with others listening same music in same space. Second aim is, you can have effect like you have two product with one unit. Triangle is used with output device of the computer and music player when you indoor, and be used with headphones when you are out.
Sangmyung university
Seoul, South Korea
Juneyoung Jang,
Jiseok Heo