How do I disconnect a Bluetooth speaker from my phone?

How do I disconnect a Bluetooth speaker from my phone?
Disconnect a Bluetooth device

Open the Activities overview and start typing Bluetooth.
Click on Bluetooth to open the panel.
Select the device which you want to disconnect from the list.
In the device dialog box, switch the Connection switch to off, or to remove the device from the Devices list, click Remove Device.

Disconnect a Bluetooth device
  1. Open the Activities overview and start typing Bluetooth.
  2. Click on Bluetooth to open the panel.
  3. Select the device which you want to disconnect from the list.
  4. In the device dialog box, switch the Connection switch to off, or to remove the device from the Devices list, click Remove Device.