A:AnswerThey then off automatically when they are plugged in, at least mine did. So I don’t think they will still be playing anything while they are plugged in.
A:AnswerCheck the settings on your phone in the Bluetooth menu. You can choose how a device pairs with your phone. Ensure they are allowed to play media, from your phone menu.
A:AnswerThe only time mine have beeped is when the battery is running low.
I have also had them beep when I have had them connected to two Bluetooth devices at the same time.
A:AnswerYou're not the only one. I've owned 2 pairs of these headphones and I've paired then to an iphone and two androids amd I have the same problem. They work for days at a time sometimes and then randomly disconnect and won't reconnect until hou factory reset them.