Features: 1. Line tracking smart car DIY kits of electromechanical assembly parts.2.Light weight and portable to carry.3.Easy to install, can be used for a long time.4.It can automatically track black feet and automatically identify directions.Description:The whole process is a closed loop control so it can be controlled quickly and wisely.Specification: Model: D2-5Material: PlasticWorking voltage:3VBoard Color: BlueBoard Size：100 x 70 x 2mmItem Weight: 83gPackage information: Package size: 125 x 100 x 6mm / 4.92 x 2.36 x 0.23inPackage weight: 83g / 2.92oz Polybag packagePackage list: 1 x Tracking smart car DIY Kits Set Note:Please allow 1-3mm error due to manual measurement, make sure you do not mind before you bid.
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