Cycling Backpack Shows Turn Signals
SEIL backpack by Lee Myung Su uses LED lights to display traffic signals. Simply by controlling the detachable wireless controller, the ...
https://www.spicytec.com/2010/09/cycling-backpack-shows-turn-signals.html
SEIL backpack by Lee Myung Su uses LED lights to display traffic signals.
Simply by controlling the detachable wireless controller, the user can show directional and emergency signals on the back of the backpack. [via]
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