Seems to work
Had field mice problem in a vacation home.  When staying at the house we would consistently catch 7/8 mice.  After first installing devices, lots of activity with mice being caught like they were stirred up after installing the devices.  Then all of a sudden it like they left the building!  We have not seen traces of mice or caught any now for 6 days straight after the devices were in for several days.  Home is in the mountains at 7000 ft. elevation and vacant for long periods of time.  So far so good.  Can't speak about effectiveness of bug deterrence yet as it is still cool for most insects here.  Hopefully it continues to solve our problem.
Rating: 4 stars