All of my animals love later lights. The dogs, cats, (both mine and the strays) as well as the ferret go nuts when we play with them with the later light. Lol.. And for future reference watch playing with this thing outside. I made the mistake while playing with my dog of accidentally shinning it into a full basketball court in a urban area. Needless to say, when I realized where the lazer was shining everyone was gone but the ball.
My dogs loves these. Our smaller one always has one in his mouth and carries it around with him and our big dog just loves go hear them squeak. Only downside is the squeaker breaks easily and both dogs put holes in them rarely quickly.