My iPhone is connecting to a Bluetooth speaker that is not on my list, how do I disconnect it?

In general, your iPhone can only connect to a Bluetooth speaker if it first pairs with it.

Try the following:

1. Tap the “i” icon next to the connected speaker.
2. Select "Disconnect" to immediately disconnect from the speaker.If you want to prevent your iPhone from connecting to this speaker in the future, you can also select "Forget This Device."
3. Restart Bluetooth: restarting the Bluetooth on your iPhone can help reset the connections. Toggle the Bluetooth switch off and then back on.
4. If the issue persists ,reset your network settings. Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.