Ultrasonic Pest Repeller, Indoor Pest Control, Pest Repellent Ultrasonic Plug in, Indoor Ultrasonic Repellent for Roach, Rodent, Mouse, Bugs, Mosquito, Mice, 6 Packs

Does not work

Spiders do not seem to care about it. I have a spider trap by one with four live spiders in it, and a spider is building a web by another one.Edit:Mice in my office continue to eat any food left out despite having 3 of these plugged in. They do not work.

OK. I've read that things like this don't really work and I was very skeptical but the price was so good I had to give it a chance. To my complete surprise, I have to say I think these work GREAT! Had signs of mice on lower level of house. I put in 4 on that level - one in each bedroom, one in a large storage area, and one in a utility closet. Next day, cat catches mouse on UPPER level (I assume driven from lower level). Added more on upper level, in garage, and one in attic where there had been signs of mice. Also set a dozen traps all around with Tomcat brand bait. One month later, no signs of mice anywhere and nothing in traps. I recommend highly.

To be honest, it hasn't had the effect I expected. I bought it especially because of the cockroaches and the truth is that they have been appearing and walking around the house very calm and happy (to put it in a funny way). I moved to a building in the center of the city without knowing that it is full with these little neighbors. I have been testing and trying different products for weeks and with big care since I have pets, but nothing has given me the expected results. So if you are in a situation similar to mine, I recommend the Raid essentials for cockroaches that you see in the second photo uploaded, it is safe for children and pets (as long as you do not exceed the use of this product of course) it kills roaches instantly, although you should be sure to clean up because this product is an oily spray.

When a I first bought this product, I only placed them in my room. Just like everyone said, you’ll start seeing heavy mouse traffic for about 3 days then they disappear. First of all, those 3 days were the longest EVER! It was disgusting. They were running right pass me. Then it stopped. I was so excited! I told my kids what to expect and I followed the instructions adding them to every room. 2 months later and I saw one run pass the one in my bedroom as if it wasn’t there. My daughter saw TWO on the kitchen counter! Now I’m heading scratching. It’s like they disappeared and multiplied. Did they adapt to the noise?

I was skeptical at first. Watched some videos on YouTube saying it doesn't work. As soon as we plugged them, it was the last time we saw the mice. Even the scratching and crawlings we used to hear in the ceiling and drywall are gone. 🥳🥳🥳🥳🥳🥳🥳

I'm not sure if this product is any good. And I'm concerned about the "nerve damage" advertised because 2 out of 6 are making an audible scratching sound as soon as they're plugged in. It sounds like an electrical short in the circuitry. I don't know if that affects the ultrasonic range and if it might bring that range down a bit into my or my animals' range and could possibly affect OUR nervous systems. Today is day-one. I'll update this review in a month after surveying whether or not they do anything about the German cockroaches in my apartment. I'm not using any other product at this time as a control to evaluate the true effectiveness of this one.Edit::: 10 days in and not even the slightest change. These devices are proving to be absolutely worthless.

I like that they worked well but they did not last long.