Only US $3.56 Cheap D2-1 Smart Robot Car kits tracking car photosensitive robot kits parts for DIY electric toy n

Cheap D2-1 Smart Robot Car kits tracking car photosensitive robot kits parts for DIY electric toy n

[32812639420] NOTE:This section for the simulation of trailing car, this section does not have a single-chip robot control, pure analog circuit control tracking, a single function. 

US $3.75

Special Discount 5%  US $3.56

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