YXZNRC F120 3D 2.4G 6CH 6-Axis Gyro Direct Drive Flybarless RC RTF Helicopter. YXZNRC F06 EC135 Aircraft 3D 2.4G 6CH 6-Axis Gyro RTF Flybarless RC Helicopter. YXZNRC EC135 6CH Gyro 2.4G Flybarless Optical Flow Altitude Hold RC Helicopter.
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