This RC helicopter features a 6-axis gyro and optical flow localization for stable flight. It has a flybarless design and comes with a 2.4G 4CH transmitter. The helicopter has a rotor diameter of 256mm and a body length of 235mm. It is made for beginners and experienced pilots alike, with features such as one-key takeoff and landing, low voltage alarm, and stall protection. The package includes the helicopter, transmitter, USB charger, and other accessories.