2020 Ultrasonic Pest Repeller, Pest Control Electronic Plug in Repellent Indoor for Flea, Insects, Mosquitoes, Mice, Spiders, Ants, Rats, Roaches, Bugs, Non-Toxic, Humans&Pets Safe 4 Pack

I like how easy it was to install, just plug in and forget it. I had no more fleas, spiders or flies. Flies that came into the house were not to be found after 15 minutes. I also added one to each outlet outside my front and back doors to keep bugs away from the entryways. Positives: they work great and I like the night lights that come with each device. Negatives: It took about 2-3 weeks before complete efficacy was noticed, inside and out. And I had to install one device per room; every bathroom, living area, at ends of hallways and bedroom.

These came nicely packed.. that was it.. not all of them would even turn on when plugged in(blue light comes on)which I guess didn't really matter because the few that did turn on didn't do a thing. I contacted customer service they send me more to replace the ones not working & I needed to return the box of the ones ones that did not. That box as well had ones that did not work. I was unable to get to Kohls to return all of these because its 45 minutes away so about 2+ hours rountrip. Not worth my time but very upset how much $$ we spent on these only to be sent about half that turned on, twice... & STILL have mice UGH

I was told that the best these do is 40%, but I had such a massive problem (along with all of my neighbors) that I decided to try. In 1 week my problem was over and I am confident that over time it will continue to serve as a barrier for our home. My neighbors read the bad reviews and chose traditional methods. They are still baiting and trapping, having to dispose of dead mice.I haven’t seen any mouse poo, any mice or any signs.I’d also like to add that I placed 2 in my larger rooms.Sooooo my neighbors have spent a lot more than I have and still are fighting the good fight.Easy peasy, worth the money.

Just received these and all you do is plus them in and wait for them to take effect and hopefully a reduction in pest activity! I hope these will provide another layer of defense against the pesky insects.You get 4 devices which is a good value for the the money. I would recommend trying out.

I bought these to repel bugs and possibly mice. I have bait traps down for mice too. Saw two of them yesterday. (Could have been the same one twice). Its not working for that, though. Haven't noticed any mosquitoes or flies since plugging one in each room, so maybe its working for that. That wasn't a big problem to begin with. Just being proactive there. Moving onto snap traps for mice. If there is one, there are most definitely others. For the money, these things are worth it if they keep bugs away.

I have a few one of these in our house and rarely see any critters (except for flies in the summer time)I plugged one in the Kitchen and one in the upstairs hallway. These are very easy to install and requires no assistance. There is light that shows it is plugged in - and has a blue nightlight.So far, I have not seen any critters!! These are cat-friendly, our cat Mr Waffles does not seem bothered by these and the nightlight is a nice addition.

I was so hopeful for these, because they claim so much! ...but I got the 4 pack, and my house is small enough that ONE according to them, should be enough. I still plugged in ALL 4... one in the bedroom, bathroom, kitchen, and livingroom. And I have seen ants, a stink bug, and cockroaches, all still here. So what is going on? I am going to maybe ask for my money back, because I paid for nightlights it seems.

First off I bought these because of good reviews. Delivery was quick we unboxed and plugged in . Two seemed to work as we plugged in the other two did not the red light was on but the blue led did not light up. I’m not sure they are working properly. After 4 days there seem to be no change we have a ant issue little tiny sugar ants. We spray constantly works for a few days then there back . So we thought these might work, but they don’t. I’m not sure if the repell anything or not, but certainly not our ant issue. So my opinion if you want a nite lite then you got that but it don’t resell crap.8 days : I have kept them plugged in hope that I was wrong, it seems that I might have been the ants have decreased we are seeing very few. I will continue to run these and will add another update later. If this continues I will purchase more for the lanai and garage to increase the area coverage. Maybe it will work on geckos will see.