Dark object, fairly small in size, changing shape, moving at about 35-47 mph, from dark to light grey, moving in a tumbling fashion. no noise, no trails. at one point seemed to turn a round. no wings, no rotors. it's hard to see on my video but if you blow it up, you can see light at one point reflects off of the surface. also, there seems to be other objects in one frame of the video which i cannot describe. the whole thing lasted maybe 90 seconds to 3 minutes. however long my video is.