title: Commands to control the volume of a connected bluetooth device in Linux?
body: <p>Let's say I have paired and connected a Bluetooth headset successfully to my Linux system.</p>
  <p>I know I can check my Bluetooth device MAC id from the <code>bluetoothctl</code> command.</p>
  <p>Is there a way to control the Bluetooth device volume using some commands in Linux?</p>