Fantastic mini drone that is good for you.These 4 Axis Headless Mode Mini Drone.
It has a unique propeller technique with perfect control.
Has a 2.4GHz Radio control, 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.
Charging time about 40 minutes and the flying time is about 4-6 minutes.
The control distance is around 30-50m indoor.
Battery For Quadcopter: 3.7V 120mAh LI-PO(inside the quadcopter)
Battery for transmitter: 2 x AA battery(not included)