Applicable for Multiple Models: Applicable to all model airplanes with mixed elevator and aileron controls including wing, paper plane, J10, traditional SU27, and the SU27 with rudder servo, F22. Flight Controller Assist Enhance Stability:Three-axis gyroscope and three-axis acceleration sensor combined with the full attitude algorithm, control algorithm, and digital filter make the airplane with the flight controller Byme-DB easy to change from Modes of Stabilize Mode/Gyro Mode/Manual Mode. Beginners can start with the Stabilize Mode and quickly master it even on the first flight. Three Flight Modes:Stabilize Mode, Gyro Mode, and Manual Mode. Both beginners and professional pilots can enjoy the fun of flight. PID AutoTune:Byme-DB continues to optimize the optimal PID parameters based on Byme-D. The fourth channel output is used for a wing with rudders, etc. No need for parameter adjustment. Only the flight control mode switch and flight controller calibration need to be set when the first wiring. Product Name: Byme-DB Flight Controller Channel Quantity: 4 channels Signal Supported: SBUS/PPM Input Voltage: 5-6V Operating Current: 252mA Integrated Sensor: three-axis gyroscope and three-axis acceleration sensor Flight Modes: Stabilize Mode, Gyro Mode, and Manual Mode Channel for Flight Mode Switch: Channel 5 Channel for Throttle Cut: channel 7(requires at least 7 channels transmitter) Models Compatible: Applicable to all model airplanes with mixed elevator/aileron controls including wing, paper plane, J10, traditional SU27 and the SU27 with rudder servo, F22 Transmitters Compatible: all the transmitters with SBUS/PPM signal output Socket Specifications: CH1, CH2 and CH4 are 3P SH1.00 sockets; the receiver connect socket is 3P PH1.25 socket; CH3 is a 3P 2.54mm Colour:As Shown Material:PC+Plastic Size:29x25.1x9.1mm/1.14inchx0.99inchx0.36inch Package Contents: 1 x Flight Controller(Due to different product batches, the appearance , which does not affect the use) Only the above package content, other products are not included. Note: Light reflection 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.