The 8 Way Speaker app will speak words and phrases that you can select in the way that's most comfortable for you. So whether you touch the screen, or use a mouse or switch device, you can pick the phrase to be spoken. It's called the "8 Way Speaker" app because there are at least 8 ways that it can be used to speak. The phrases are customizable, so you can add whatever phrases are most useful for you. You can also have an ad-hoc phrase spoken.
If you're making a presentation or doing some other form of public speaking, you can use the 8 Way Speaker app to speak paragraphs of text using any of touch, touch with small movements, mouse, keyboard or a switch device.
Based on customer feedback, the 8 Way Speaker app has been updated to show a list of boards of words and phrases. Pick a board that's most helpful to you in your current situation. For example, pick the Environment board to have the things around you adjusted. You can change the words and phrases shown on a board to be anything you want.