Fully Equipped: Extra 4 batteries & replacement spare parts(motors, blades, gears) included, providing better quality guarantee, while enabling you to enjoy longer flying time. Handy to Carry: The professional grade carrying case makes it more convenient wherever you go, and gives your drone and spare parts all-round protection. Stepless-speed function: Exclusively designed for both proficient and beginner. It can achieve seamless speed shift between 10%-100%, and the adjustment on speed can be 1%, which not only enables you to fly indoors & outdoors, but makes it easier to practice operating skills to move from beginner to expert quickly.