This is a two-part question. How long can you video without flying if you want to video something by hand and will it record audio

Hi there, we do appreciate your interest in our product. As per the specs of your drone, the  aircraft max flight time is 31 minutes (at a consistent 25 kph). However, in your case  you are using the drone as a handheld stabilizer so there's a possibility that you will reach more or less on the expected battery life. Please take note that there's no sound on the original video when recording. If there is a need, you can cache the transmission video and enable the audio sound recording in the app (General Settings). I hope this can help. Thanks for your support.