3-Axis Flight Controller Stabilizing System Gyro Airplane Glider FPV Releasing Aircraft Balancer Sensitivity Debugging, we suggest that in the lowest position in the maiden flight and according to the addition of a range of 5 minutes each to process the test flight adjustment. When the flight controller factory settings, in 50% position, please do not put the factory settings as standard, and adjust the corresponding sensitivity according to the aircraft and power parameter. Working Volt: 3.5-6v Color: Black Material: ABS Package Content: 1 x 3 Axis Flight Controller4 x Servo CableOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.