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Unexpectedly, people can be frightened by sudden loud sound of speakers.
As each media file songs, movies and sound effects - has different volume degrees, the irritation sometimes happens because people cannot guess how loud the speakers would be.
This speaker provides color degrees like temperature image (Red : Hot, Blue : Cold) , which means that people can anticipate how loud they would be, as the speakers color.
Cho Chi Won, South Korea
Yeon Soo Kim
Chi Hoon Han
Seoul, South Korea
Yeon Soo Kim Byonggon Park Chi Hoon Han