Mice defense is relatively simple and thus constructed almost self-explanatory. Just select a simulated ultrasound frequency and then start with one click. All without cheese. ;-)
You can change between the individual frequencies during operation. Here are six to choose from. To stop the simulation again, only another click is necessary.
In order to obtain the functional upright, the app needs to stay open. But the display can be turned off to save battery.
If you like this free Android app, I would be very happy about a positive review in the Google Play Store. Note that this is explicitly marked as a prank and not a real mousetrap. Also real ultrasonic sounds can not be played with, because it isn't possible with the installed hardware in your smartphone or tablet. The purpose of this application is to take your friends the fear of mouse in the house, or simply to have fun.
Feel free to write me your feature requests via email. If you find an error, use the same way to get in contact, so I can take care of fix it as soon as possible.