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It is always difficult for USB users to recognize that their USB is plugged in their computer while they're using it because humans tend to overlook something which dosen't catch their attention. The CPU of a desktop computer usually under the desk that we can't see the USB. this product delivers message to users continuously through the cap of the USB. It would never happen for this product users to forget their USB.
DaeGu, South Korea
Daegu, South Korea