1, 4-CH,outdoor use 2, 2.4G,two servo,Built-in gyroscope 3, ... 3). Intergrated and durable canopy is designed extractively.4). Convenient disassembling skid landing make it easier ... 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 ...