Fangrui Product Details Compact And Lightweight: The Mini Digital Servo Motor Features A Small Size And Lightweight Design, Making It Ideal For Use In A Wide Range Of Electronic Projects. High Torque And Fast Response: With A Torque Of 1.6kg/cm (at 4.8v) And A Response Speed Of 0.3s/60 Degrees, This Miniature Servo Motor Provides High Performance And Fast Response Times. Wide Working Voltage Range: This Mini Gear Servo Motor Can Operate Within A Voltage Range Of 4.2-6v, Making It Compatible With A Wide Range Of Power Sources. Durable And Reliable: Made From High-quality Plastic And Featuring A Gear Medium, This Steering Engine Is Durable And Reliable, Ensuring That It Provides Long-lasting Performance Even After Multiple Uses. Suitable For A Wide Range Of Electronic Projects: This Servo Motor Control Is Suitable For Use In A Wide Range Of Electronic Projects, Including 450 Fixed-wing And Helicopter Models, As Well As Other Robotics Applications. Condition: New Supply Voltage: 4.2-6v Sg90 9g Servo 450 Fixed-wing Helicopter Mode