We have already had defensive rods from discounters and tried various other means. Nothing works.
The Gardigo Basic unfortunately not.
Apart from the fact that I find it a pity if such a device is delivered without batteries (which previously tested all worked without a battery via a solar cell and such, there is also of Gardigo what I would always prefer), the handling is very simple.
Batteries pure, stick in the ground, ready.
One can not turn it off, which I personally do not like the hum because I want to be outside in the summer or at night the window is open to the garden. The hum is indeed quiet, but audible and at least at night it bothered me so that I mixed the bar fairly quickly to a remote corner of the garden as possible. However, the hills were far unfortunately always in the other corners and so far I can not find any repellant effect on the animals: only I myself feel at home, humming garden not well, my cats also make a big circle around the location with the Defence Staff. Our voles, however, appear to be of sterner caliber.
