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°. ACEBOTT Smart Robotic Arm Robot Car Kit: An educational kit for STEM beginners (children) based on ESP32, built on omnidirectional Mecanum wheels, using high-quality metal gear servos, equipped with 5 DOF robotic arms and ultrasonic infrared sensors, and programmed with Arduino, designed to help them learn how to build and program fully functional robots, improve logical thinking and electromechanical skills, suitable for experimental projects or school training for teenagers and adults. Flexible control ability, can freely grab, lift or place various objects, greatly improving the practicality and intelligence of the car.