Some of cool tools in this product are:
Sonar - turn your screen into a sonar monitor
Waves - create ripples on your screen
Comic - click around and comic book pow & kapow's appear
Some of the useful tools are:
Cutout - it dims the screen, then you can select parts to highlight. You can choose from circle, oval or rectangle cutouts
Flashlight - it dims most of the screen, except for the immediate are around your mouse cursor. You can adjust how big or small the flashlight is in settings
This tool could be extremely useful when doing a lesson with a projector or SMARTBoard to help students focus on the correct part of the screen. Download Ominidazzle for Mac from here.