Syma X2 6-axis Gyro 4-CH RC Quadcopter RTF Protection Design, Stabilization, 360&deg; Eversion - Black Super mini size, the smallest volume and the lightest weight,beyond imagination stability and operability Charging Mode: USB charging, Charging Time: About 30mins The latest 6-axis gyro quad-rotorcraft flight, strong stability, can eaily implement various flight movements, strong wind resistance, easier to control. Lets you hand-launch the quadcopter! A key 3D 360 degree roll, continuous roll for perfect action and wonderful performance. able to do tricks and flips in the air! With circle guard design to protect you from minor collisions Using spread spectrum technology for further remote distance, best anti-interference ability, least power consumption. you could fly more helicopters at the same time, its reaction speed is 100 times faster than other radio control