E-Sky Robinson 22 Ready To Fly Helicopter Kit

[Specification]:        
(1) Main rotor diameter:340mm;(2)Weight:230g    
(3)Length:360mm;(4)Power system:180 motor*2    
(5)KIT/ARF/RTF:RTF;(6)Transmitter:Standard 4 CH    
(7)Mix controller:4 in 1 controller
   (W/gyro,mixer,ESC,receiver);    
(8) Servo:8g,1.3kg/CM,0.12s/60    
(9)Battery:7.4V 800mAh Li-polymer battery   

[Product description]:    
Excellent design for your indoor flight.     
Pre-position servo mounts for easy setup.     
Ready for flight out of box except 8 "AA" battery 
(sold separate).