1, 4-CH,outdoor use 2, 2.4G,two servo,Built-in gyroscope 3, LCD screen iAplat FP * 4ch Micro Helicopter for Beginner* 3-Axis Gyro ... 3-Axis Gyro control which makes flight stable is suitable for the beginnersFour Colors : Red Green Orange Blue 2.4G,two servo,4-CH ... helicopter,Built-in gyroscope Speed adjustment,easy to fly Single propeller rc helicopter, Built in ...