At first I was a bit skeptical as to whether this case really works. Therefore, I have placed a small camera near the case. At first you could see that the mice via the case, however, do not run into the trap. Then I gewchselt the bait. Instead of peanut butter (which for me nothing brings) Did I use ChrunchiNut flakes. It involves flakes with peanuts and honey. In addition, I put a bunch of grapes in the case. Lo and behold, the next day there was a mouse in a trap. A striking feature of this mouse is that they had a tick on the neck was. I have the mouse then released about 1 km away. But to my amazement, sat the same mouse the next day in the case. (Identification tick) So I have now exposed the mouse about 5 km away. They did not come back. For that I had after 3 days again a mouse in a trap and after a further 2 days another.
Therefore I can only recommend this case. You must check nartürlich this trap regularly, because the mouse hardly approach comes in the case of liquid, and would otherwise die of thirst.