It goes about 5 minutes and then comes up with a dialog saying to find device or private listening. The sound keeps coming through fine, so it is actually CONNECTED. Don't know why this message comes up.
But if I want to control the Roku program, I have to choose find device. Then find and reconnect to the device. And then click on the headphones to get the sound through my airpods again. Very frustrating.
I have the same problem on an iPhone 8+ and an iPad Pro. Only stays connected to the tv (JVC Roku) for about 30 - 45 seconds then says "Eco Mode. 49 JVC Roku TV may be in Eco Mode" and then gives a choice of Power on Roku or Switch Device. I can't find any setting on the tv labeled eco mode. It gets tiresome to have to reconnect constantly.