KEYESTUDIO DIY Robot Car Kit for Arduino, 4WD Desktop Bluetooth Mini Smart Car with Tutorial for Stem Education This is a great smart robot car kit to learn ARDUINO, provides a great platform to develop your arduino coding skills and help complete a variety of interesting experiments Comes with a complete booklet, including assembly drawings and wiring diagrams, as well as all the code to help use(constantly update and offer technical support We also have detailed video and web page tutorials to guide you step by step on how to build everything together, kit includes excellent uno r3 board and sensor shield for arduino, HC-06 Bluetooth module etc Projects you can make: line-tracking smart car, obstacle-avoidance smart car, bluetooth smart car, you can also extend other functions on this robot platform This high quality arduino robot car kit has beautiful packaging and passed ROSH and CE certification, it's really excellent and safe to be a gift for your children and friend