Add flight controller switch control mode and three- locking(AVCS) mode Adopts angle vector control algorithm, realtime test and correct angle drift of 3-. Locking mode greatly improves airplanes stablity. Add switch channel to switch mode during flight. Color: Black Material: ABS Size: 26*39mm Weight: about 6g/ pcs Working Volt: 3.5-6V Sensitivity debug,we suggest that in lowest position in maiden flight,and according to add 5 mins range Each to process the Test flight adjustment. When the flight controller factory settings,in 50% position,please do not put the set factory settings as standard,and adjust right sensitivity according to your airplane and power parameter. Package list: 3 * P1-GYRO 3- Flight Controller Stabilizer System Gyro (With accessories) 3 * Instruction Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.