Pyramid Drone over KC, Kansas. Morphed to oblong oval before disappearing.In our backyard, my girlfriend had noticed a bright helicopter light, probably 10-15 miles away. We often focus on these things, in hopes, to one day see a UFO for ourselves. As the light moved closer towards us from the south east, the object took a shape. To our astonishment, the object was pyramid shaped. The light that was on the vehicle was set at the base of the pyramid. This light did not have beam like qualities, but it seemed to be spotting. The craft would stop, rotate the light around the body, stop the light to observe something, then continue on it's path. We watched as the object moved closer and closer. After about 2 minutes the object was probably 2 miles away from us at the most. It was BIG! There also seemed to be some kind of "Heat-wave" aura around it, like heat waves you see coming off of the hot streets in the summer. There were no sounds that we could hear from the object. At its closest point to us, estimating about 2 miles, the object turned towards the South west. Before the craft disappeared behind the trees, it had sort of morphed into a more oval/oblong shape. As soon as the thing had left our sight, we dashed for the car. We traveled down I 635 in hopes to find the path of the object. There was no trace of this object! One thing to note: few seconds after this had left our sight, a large commercial like plane flew pretty low in the same direction as the ufo. We find this odd because there is no major airport to the sw of us.