Recently purchased a quadcopter with attached camera. It is the Yuneeq 500 model. It comes equipped with software which will not allow you to fly it in controlled airspace based upon GPS satellite data. Supposedly, according to the software, this can be overridden, but I have not attempted to do so. I took it to the local airport during a recent meeting and it warned me that I was near such an area. If manufacturers want to stay in business, this is the type of modifications they should be looking at.