..we had permanent problems with Katzensch ... in our beautiful garden. For about 2 months, we have now positioned 2 of these things so that the cat walk in the crossfire (flash is activated). The batteries last up to now with solar energy alone by, for the winter it might be a bit short (nur800 mAh AA batteries in it) - but one can indeed replace to 2000 mAh or necessary load it.
So far, toi, toi - um cleaner Garden without stench.