Useless Chinese device. Money wasted. Does nothing. Battery hungry. Worked the first few days, then broke.

Opinions are divided. I used it twice, once in my country house and once in my permanent residence. It seemed to work in the village since the cats didn't approach, but in the city, nothing happened. I don't know, maybe something else was to blame in the village and they didn't approach. For the 50 euros I spent, I don't think it was a good purchase.

Although I didn't have high hopes that it would work, it seems to be effective. The battery consumption is high, however, the cats stopped doing their job in the garden.

It does the job but the transformer is necessary. The two 9-volt alkaline batteries do not last more than a month.

Unfortunately, no results.
Battery operation is completely impractical. Two Duracell 9V batteries in mode operation every 5 minutes for a few seconds, last 5-6 days.