Walkera Infra X RC Quadcopter w/ Altitude and Proximity Sensors
Black – http://www.xheli.com/walkeraheli-quad-infra-red-rtf-24g-devo4.html Yellow – http://www.xheli.com/walkeraheli-quad-infra-yellow-rtf-24g-devo4.html A quadcopter is a machine that is lifted …