With Balloon, you can do professional broadcasting using broadcasting softwares such as OBS by entering the unique stage RTMP key and URL.
Once you create a stage in Balloon Manager (organizer dashboard), scroll down to select 'Balloon Studio' as the video provider and then click on RTMP stream as indicated in the image below.
Then copy the stream key and RTMP URL into your broadcasting software.
Once entered, you will be able to control the broadcast directly from the broadcasting software.
This is a good article on how to stream with OBS