http://www.hobby-estore.com/e-sky-lama-v4-rc-helicopter.html With the new LamaV4 you get a completely assembled and ready to fly micro heli with a coaxial counter-rotating head design that is so stable almost any first-time flyer can be hovering like a pro in no time. The LamaV4 offers things other similarly designed micro helis can’t – the power and precision of ESKY 8g servos, an advanced 4-in-1 controller, and a great looking, lightweight body that really stands out. The LamaV4 features counter-rotating main blades that cancel out the rotational torque that makes hovering a challenge in conventional helis.They also make rudder turns much easier by slowing down one or the other blade without affecting the stability of the aircraft. This is truly a helicopter that most anyone can fly and beyond your dream.