Ok... I have had a DJI Phantom 3 Professional for over a year now... I have to admit I did not use it for a few months. Being in Chicago the weather sucks in the winter. I took it out and upgraded their **** firmware and had a RC Signal Loss. I waited on hold for tech support for an hour only to get some Indian who tried basic solutions and then made it a point to get off the line with me since he couldn't fix the problem. Considering the money I spent on this POS I cut my losses and threw the whole thing in the garbage "literally" since that what it is. For all those out there... Save your money. Great concept but the company sucks. This would be my 3rd drone replacement. My first call to customer service a year a go, the girl actually said I "breaked" it by messing up the firmware update. Again.... Save your money.