Feature: 1. Programmable: The RC steering gear has programmable PWM digital amplifier and 32 bit MCU with 14 bit magnetic encoder. 2. IP67 Waterproof Shell: The RC car gear servo has diamond cut aluminum radiator shell that is IP67 waterproof so that it is durable and has long service life. 3. Coreless Motor: The RC servo steering engine has high accuracy helical gears, double ball bearings to support the output shaft, and premium coreless motor. 4. Working Voltage: This RC coreless servo's working voltage is DC6‑8.4V, and its connector plug is JR plug and it is safe and reliable to use. 5. Application: This RC servo is perfect for people who are interested in developing software for robot parts, remote control cars, mechanical arm, etc. Specification: Item Type: RC Steering Gear Shell Material: Aluminium alloy Gross Weight: 119g/4.2oz Color: Black Product Size: 40x20x38mm/1.6x0.79x1.5in Working Voltage: 6V-8.4V Operating Speed: 0.10 seconds/60 degree at 6.0V 0.08 seconds/60 degree at 7.4V 0.07 seconds/60 degree at 8.4V Stall Torque: 26.0kg-cm at 6.0V 31.0kg-cm at 7.4V 37.0kg-cm at 8.4V Connector Plug: JR plug Pulse Width: 500-2500usec Deadband: 2usec Application: RC remote control vehicle, robot, mechanical arm, etc.. Package List: 1 x RC Servo1 x Metal Servo Arm2 x Plastic Servo Arm 4 x Screw Cartridge 4 x Rubber Pad 6 x Screw