1. Automatically correct: Allows gyroscope remote control car modified steering angle. 2. Remote gain control: You can adjust size of gyroscopic effect of 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 servo Output Limit 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 toward a given direction and taking precision turns at high apeeed more manageable,more controllable. Due to different product batches, the appearance , which does not affect use. Type: 401 Colour:As Shown Material:Plastic Package Contents: 1 * Sensor Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.