Features: Automatically correct:Allows gyroscope remote control car modified steering angle. Remote gain control:You can adjust the size of the gyroscopic effect of the third channel by remote control remote gain control. Gyroscope amount adjustment function:In remote gain mode can be used to adjust the servo Output Limit the amount of Gyroscope. Local gain adjustment function:Available adjustment gyroscopic effect size. Instructions1) Support analog and digital servo2) Connect the steering servos to the TLY01, then turn on the transmitter and receiver.3) Do not move your car until the LED of TLY01 turns red. ready to use.4) The sensitivity of TLY01 can be adjusted from minimum to maximum . Choose a suitable location to run. If the sensitivity is at the maximum position, the car will drive like a "snake" and then gradually adjust back to minimum position until the car can drive in a straight Specifications: Material: Plastic,Metal Color: Black Size:Approx.29x15.2x8.2cm/11.42x5.98x3.23in Working voltage: 4~6V (D C) Working temperature: -10~45C Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xMini Gyroscope