Thanks for the question and the answer. After seeing this post, I had to try it as my Dot is connected to stereo input. I tried to connect two different BT speakers. I connected speaker1, and after it was connected and played a while I disconnected it, and then setup speaker2. Turned it off, and tried to connect speaker1 again, and it connected right away. No command needed in this instance. It did turn off when I asked Dot to disconnect the speaker. It all works fine, and it will likely connect to the other Dot that has a small little speaker plugged into it, even with small speaker still connected. So, an instant speaker upgrade when needed and no unplugging of any wires. Cool.