Compliant with most standard receiver connector: Futaba, Hitec, , GWS etc. Stall torque: 12kg/cm(6V), 13kg/cm(7.2V). Power Supply: Through external adapter, connector wire length 300mm. Stable and shock proof, coreless motor, metal gear. This high-speed standard motor can rotate 180 degrees (90 in each direction). Gear Type: All Metal Gears. 180 degree rotation. Controllable angle range from 0 to 180 degrees, excellent linearity, precision control. Can be rotated within 360 degrees when power off. Specifications: Connector Wire Length 300mm/11.8 inch Operating Speed: 0.17sec / 60 degrees (4.8V no load) - 0.13sec / 60 degrees (6.0V no load) Operation Voltage: 3.0V - 7.2V Gear Type: All Metal Gears Dead Band Width: 4usPlug Specification: JR FUTABA and so on Temperature range: -30 - +60deg Weight: 55g Gear Type: All Metal GearsPower Supply: Through External AdapterStable and Shock ProofCompliant with most standard receiver connector: Futaba, Hitec, , GWS etcGreat for biped robot / robot / remote control car, suitable for models of 50-90 methanol fixed-wing aircraft and 26cc-50cc gasoline fixed-wing aircraft Note: Please make sure that the duty cycle of the controller you are using conform to our specifications, otherwise the can;t turn up to claimed degree. Connection: Red Wire: +Yellow Wire: PWM/Signal Brown Wire: GND Control Specifications: Control Method: PWMPulse Width: 500-2500Duty Ratio: 0.5ms-2.5msPulse Period: 20ms size: 40.7 x 19.7 x 42.9mm Material:ABS+Metal colour:black Package Contents: 4 x for 4 x Horn Kit Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.