Kuman Sm5 Th Wireless WiFi Robot Car Kit with Video Tutorial for Arduino,Utility Vehicle Intelligent Robotics, Hd Camera Ds Robot Smart Educational Robot Kit for Kids (WiFi Robot Car Kit) GREAT CHOICE - this Kit is a great choice for learning robotics electronics for Arduino programming It contains mechanical parts and electronic modules for you to start exploring the robot world it can be used to build a robot tank or a 5 wheel robot car This is WIFI version Smart Car chassis ,Extra-large size stainless steel car body, military crawler-type Robot car. 2.1KG Chassis with all-stainless, laser-carving and welding body , which is best collection for Intelligent robot fans. Power system: Double dc gear motors, planetary gear box,12W.1.5W, Degree of climbing:575 pairs of driven wheels, one pair of capstan , motor specification: 12V 350 rev / min. If you use ios system(Iphone/Ipad), You have to first jailbreak your phone before run our software.