Safe cycling
Mobile phone APP interconnection
Rear turn signal rear view camera
Self-generating mobile phone charging turn signal equipment
本作品版权归 BOY 所有，禁止匿名转载及个人使用，任何商业用途均需联系原作者。
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I used to have such a plan and have many ideas, but I am not a fan of the design industry.
But it's not very beautiful to put it on a bicycle.
Use your mobile phone as a bicycle navigation screen