We love the Hero4 Session for its long battery life, ease of operation, and durability. However, our first flight test was less than stellar. The video was full of jello and pretty much worthless. We knew we had to do something because this camera was to good not to use in an airplane. Our solid metal cage surrounds the camera providing a solid mount that will not resonate like the plastic mount that GoPro sells with the camera. We added our propeller filter to eliminate the propeller and provide you with the beautiful video you have come to expect.