It beeps from time to time during flight. I had the drone over large trees. Controller started beeping so I brought it home to be safe.Is it beeping as soon as you power up the remote, or are you just hearing beeping during flight? If it's only during flight, it might actually be your phone/tablet making the noise via the DJI app, and that is the proximity sounds.
It will beep if obstacles are nearby. It will also give the graphic of how far the obstacle is from the AC.It beeps from time to time during flight. I had the drone over large trees. Controller started beeping so I brought it home to be safe.