Avatar F163 Wireless 4-Channel RC Helicopter with Gyroscope (Blue) + Worldwide free shiping This product has acceleration, lighting control, allows you to control simple and easy to use, the effect beautiful flight! high-performance micro-computer control, accurate response, quickly make a variety of flying and air routes! exclusive first dual side fly mode, players can control the aircraft flying proficiency operating modes to choose sides! The unique product design, replaceable aircraft batteries, so you can enjoy a long uninterrupted remote control aircraft excitement pleasure! can easily control the forward and back, left and right side of the fly, Zuozhuanyouzhuan, drift, hover and fixed to land!