RC ERA C189（MD500）RC Helicopter 1/28 4CH Optical Flow Positioning RTF Airplane
RC ERA C189 MD500 RC Helicopter 4CH 1/28 6-Axis Gyro Optical Flow Positioning
RC ERA C189 RC Helicopter MD500 1/28 4CH 6-Axis Gyro Dual Brushless RTF Airplane
RC ERA C189（MD500）4CH 6-Axis Gyro Optical Flow Positioning 1/28 RC Helicopter
