The controls are pretty simple, just like bubbles and letters should be. You can change the color and thickness of the bubble and its outline. The bubble can be moved and resized, or made into an ellipse or rectangle. Resize the bubble with the end points of its bounding box. The speaking indicator is also adjustable. You can select and move the indicator and make it wider or narrower.
It’s easy to think that all you need to carry with you these days is a smartphone and you’re ready for anything. But some extended periods away from my desk have discovered four things that are ‘must-haves’ for the traveller.