I had the my bugs 4w out for a flight and the RTH did not work. I lost my drone. I am upset because I think it was a failure on the RTH feature. The app has not been connecting like it used to. I am NOT going to be buying anymore Bugs products. As much as I have enjoyed my 4 bugs drones, I think they are starting to cost me. If you are downloading this app for the first time and have a new Bugs drone, do yourself a favor and consider returning it before you fly it and it fails.