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USB flash drive is a media to store and deliver information. But the normal USB flash drive can only exchange information by connecting with PC. Our device, 凹凸， can directly exchange information with each other, with files floating on the little screen, which makes our job more efficient.
凹凸 is connected by the structure of 凹凸, on which there is a mental line which has the function of exchanging information. The name of files will be found on the surface if we switch on the button. With simple gesture the information will be transferred from one to another.
Department of Industrial Design
Haolin Xuan & Hui Lin