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All Vision prompt / convenient to recognized

All Vision prompt
All Vision prompt

When we take the crowded subway or bus, occasionally because
someone blocked the road map or voice prompts covered by the
music we listened and miss the station we want to go.
But.now,each handhold have 3 LED screens to make sure passengers in
different position could see what the next station is.


Xihua University

Xihua University
Chengdu, China


Xihua University

Xihua University
Chengdu, China

Xujiang Zhao Yao He Yueya Qu Jingwen Wang