This drone requires Betaflight and also Com over USB with dedicated drivers. (none provided) It wasn't clear when I bought it and after a week of trying these drone tethers it still won't fly. It comes with no factory configuration documentation, so Betaflight has to reprogram things like the stick switch to start the motors. I can't start Betaflight due to advanced COM port setting which uses 8 COM ports in loop to decode cellular streams and trunk frequencies with SDR. I'm very upset that I had to find Betaflight to download and install it only to find that it was using com over serial and didn't have the right hardware and software to communicate with the computer. Mobula6 holds but doesn't fly and I think the BNF version is a waste of money. If it's not ready to fly and you've never had a connection or terrible software, don't buy this version. Get the RTF version as it won't fly without requirements not listed in the description. The design is bad, ugly and does not fly