bluetooth volume drops on ipad

iPad air2, iOS 15.8.2

as many have said, my Bluetooth headset volume simply drops the longer I listen, or after I stop watching for a time and come back, often to inaudible levels. This has happened with all three iPhones and both iPads I’ve used with all three of my Bluetooth headsets over the years. Searching has previously helped me figure out stopping it, but since using this particular iPad I cannot correct it. None of the searches I’ve done have steps that I can use, I’m thinking perhaps because it’s an older model. Any help would be appreciated.