Have the ball for my two Stubentiger ordered, since they can not have enough to play incentives. (Not loud, but audible) find the weasel also totally great, after initial skepticism because of the engine noise jumping around all day with it. It does not matter to them whether the weasel is on or off, in case of doubt, you can pass so strutting on Wiesel behind :) Four stars because the processing could be better. The string of hanging the Weasel could be more stable, meien cats they have chewed for 2 days. In addition, the on and off switch inside is somewhat cumbersome. Overall for me but not a problem because the cat still play with it (one with the ball, the other with the weasel) works and the switch yes :) For the price so absolutely fine!