The 4.3g Micro Servo Motor (0.8Kg.cm) is a type of small, brushed electric motor that is commonly used in hobby projects, such as radio-controlled toys, robots, and other small electronic devices. The 4.3g refers to the weight of the motor, and the 0.8Kg.cm is the maximum torque the motor can generate.

Servo motors are different from conventional DC motors in that they have a built-in control mechanism that allows them to rotate to a specific position and hold that position, rather than continuously rotate like a conventional DC motor. This makes servo motors ideal for applications where precise control of position is required, such as in robotics, automation systems, and other control systems.

The micro servo motor is typically controlled by a pulse-width modulation (PWM) signal sent from a microcontroller or similar device. By controlling the width of the PWM signal, the user can control the position of the servo motor's shaft.

In summary, the 4.3g Micro Servo Motor (0.8Kg.cm) is a small, precise motor that is well-suited for a wide range of applications where precise control of position is required.

This tiny servo motor is suitable for usage on drones and model helicopters due to its small size, light weight and relatively high strength.