how to disable autoconnect on bluetooth for certain devices

I have bluetooth speakers in living room which I sometimes use for music. When its paired it works fine. When I want to stop using BT speakers (e.g. I go to other room) I just disconnect them but for some reason (e.g. on wake up) they get autoconnected again because they are in range but I am not in the room. I would like this behavior to stop as it gets really annoying and I have to disable BT speakers very often. From what I see now I have these options:

1. turn off bluetooth - I dont like this option as there might be other devices I want to use (e.g. magic mouse)

2. remove the BT speaker - but I have to pair it again when I want to use it

So I would love to disable autoconnect when I manually disconnect BT devide, or I would like to set whether specified device should autoconnect or not. Is there any way to do it?