Fangrui Product Details 1. Automatically Correct: Allows Gyroscope Remote Control Car Modified Steering Angle. 2. Remote Gain Control: You Can Adjust The Size Of The Gyroscopic Effect Of The Third Channel By Remote Control Remote Gain Control. 3. Led Status Indicator:median Capture, Power Indicator, Gyro Indication. 4. Rudder Amount Adjustment Function:in Remote Gain Mode Can Be Used To Adjust The Servo Output Limit The Amount Of Rudder. 5. Local Gain Adjustment Function:available Limit/gain Adjustment Gyroscopic Effect Size. This Gyro For Rc Cars,it Is A Device Using Gyro Sensor And Software Algorithm To Adjust Steering Output, Providing You With A More Stable And Controlled Driving Experience.allows You To Drive The Toward A Given Direction And Taking Precision Turns At High Apeeed More Manageable,more Controllable. Due To Different Product Batches, The Appearance May Vary, Which Does Not Affect The Use. Type:gc 401/gc 301 Colour:as Shown Material:plastic Package Contents: 1 * Sensor Only The Above Package Content, Other Pro