Feature: 1. Premium Material: This RC Helicopter Servo Motor is made of aluminium alloy materials, making it sturdy and durable, excellent corrosion resistance ensures long term usage. 2. Metal Gear Design: Features metal gears that can withstand higher loads, ensuring the smooth functioning and longevity of the servo motor. 3. Efficient: Designed to operate with high efficiency and low noise. Also, its low power consumption makes it a reliable and economical option for your RC helicopter. 4. Multiple Servo Arms Included: The packaging includes different servo arms to meet your needs, offering you more convenience and flexibility for its usage. 5. Easy Installation: With compact size, and complete accessory, this servo motor is simple to install and disassemble, contributing to its user friendly functionality. Specification: Item Type: RC Helicopter Servo Motor Material: Aluminum Alloy Size: Approx. 22.9x11.9x26.8mm / 0.9x0.47x1.05inch Operating Voltage: DC 4.8-8.4V Operating Frequency: 760us/333HZ Torque: 4.1kg.cm (8.4V) 3.5kg.cm (7.4V) 2.5kg.cm (6V) Operating Speed: 0.045s/60° (8.4V) 0.05s/60° (7.4V) 0.06s/60° (6V)Application: Applicable for RC Remote Control Helicopter, Fixed Wing, Robot. Package List: 1 x Servo3 x Servo Arm1 x Screw1 x Plastic Box