Add sound to your keystrokes
Keyclick is a useful Mac preference pane that adds sound to your keystrokes, helping you become an expert at touch typing without needing to look at your keyboard. The program is easily adjustable and can be installed into your Preferences pane. It provides sound not only for your keystrokes but also for mouse clicks and scrolling. You can even exclude certain applications, like games, from making sounds when typing. Keyclick offers the option to use hotkeys to control the volume of your keystrokes, and you can mute it completely by simply pressing Control-Alt-Command-T. Overall, Keyclick is a helpful tool to improve your typing skills.
Keyclick offers the following pros: it provides sound for keyboard, mouse, and scrolls; it helps with typing; and it allows you to exclude certain apps. However, it should be noted that Keyclick is a trial version, which may limit some of its functionality.