The Servo Motor Is Specially Made For Robotics With Custom Design And Dual Shaft. Also Designed To Work On 7.4v Li-Ion Battery, Gear Type: Metal Gear, Limit Angle: No Limit, Bearings: 2 Ball Bearings, Horn Gear Spline: 25t, Horn Type : Plastic, Connector Wire: 300mm ±5 Mm, Motor Metal: Brush Motor, Command Signal: Pulse Width Modification, Amplifier Type: Digital System, Pulse Width Range: 500~2500µSec, Neutral Position: 1500 µSec, Running Degree: 180°(±5°)(When 500~2500 µSec), Dead Band Width: 4 µSec, Refer Below Given Link For More Information: Http://Robokits.Co.In/Motors/Rc-Servo-Motors