The product does not meet with us his purpose. We had brought two cats from the shelter (longhair cat 3 years, Siamese 7 years), where the two had almost no time for getting to know. Therefore, we have tried everything to provide sufficient opportunities in the home, so there are no resource conflicts and the two of them can sometimes go out of the way. For example, 3 large scratching posts (2 in the living room) with cubicles, 3 toilets, etc. For this purpose, in the living room 1-2 of Feliway evaporator and now and then a direct spraying off the sofa and the like. After 6 weeks, the two are still no heart & soul, now and then there are fights, fur tuft lying around or can be found in the mouth of the cat. Meanwhile, we had to replace the evaporator cylinders. We were hoping for more of the pheromones. The corresponding evaporator also consumes 5 watts continuously.