Flexible 5 DOF Robotic arm building kit: The smart robotic arm car innovative robotic arm design, equipped with 5 high-quality metal gear servos, can achieve 5 degrees of freedom movement, the clamp can be opened 260°, the wrist can be rotated 180°, the elbow can be rotated 180°, and the base can be rotated 180°. Flexible control ability, can freely grab, lift or place various objects, greatly improving the practicality and intelligence of the car. (Note: Without Car) Graphical Programming: Provides detailed and operable programming, and cooperates with a variety of car functions, which is conducive to stimulating children's creativity and imagination. Developed based on the Arduino open source platform, DIY assembly and construction, cultivate children's concentration and hands-on ability. Using advanced ESP32 control board control makes programming simple. Simple assembly and detailed coding tutorials: This intelligent robot expansion pack contains high-definition rendering instructions on how to assemble a robot car from scratch and all necessary programs and codes. The path is: ACEBOTT official website - Resources - WIKI and assembly video. STEM Education Kit (excluding basic car): The ACEBOTT intelligent robot car kit provides an excellent platform for STEM education with its easy-to-program ESP32 controller, rich function expansion and all-round control design, helping students master programming, electronic hardware principles and robotics through practical operating systems, and stimulate creativity and problem-solving skills. It is a perfect New Year gift for programming enthusiasts and teenagers. The Robot kit itself does not come with a battery, you need to purchase it separately.