YUXIANG F07 UH-1 2.4G 6CH 6-Axis Gyro Optical Flow Positioning RC Helicopter. RC ERA C138 Bell-206 RC Helicopter 1/33 3D 6CH Gyro Optical Flow Altitude Hold. It made of high-quality glass fibre reinforced plastic, have been designed to provide a better flight experience with aircraft-grade components and are equipped with an airtight, fog-proof design.
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