Bought this late Friday afternoon and it is now Sunday. That first night my 6 month old kitten chased this to the point of panting (I need to be more careful I guess). Today Sunday, today, I noticed that when I turn the white light on (turns on first before laser pointer) she would stand at attention watching for the red light. This evening, I found that she would come running from even a distance when she heard me depress the on button. I have found that this is also a great way to catch my frisky cat, when she does not want to cooperate, as i can point the laser at my feet and she'll come right over and I can pick her up. Planning on buying a spare! :) Oh, and nice to have a spare flashlight as well!!