Ultrasonic Pest Repeller Electronic Pest Control Plug in Pest Repeller for Insect - Mice, Roaches, Bugs, Fleas, Mosquitoes, Spiders, Non-Toxic Environment Friendly, Humans & Pets Safe, 2 Pack

If I could give zero star, I would have done it. This device does NOT work. I have a small apartment, a small kitchen and a small room. I put one device in the kitchen and one device in room. I found 2 fruit flies sitting next to the device in the kitchen, and one big spider next to the device in my room. I put the device in space elevated from the floor, no barrier, and the device is set up as the provided instruction. They have said that I should expect seeing insects in the apartment after installing the device, but if the device has a repelling function, how comes we can see fruit flies and spiders just next to the device! I will upload photos when I can catch them again next to the device. I don't understand how all these people gave such a good review about this product, they should be something suspicious!

So I brought this item back in Dec to a roach problem that started getting out of control. We bombed a couple of times and use tons of roach sprays and have seen some success. We wanted to try a different and a more eco friendly method to control our roach issue. So I ordered this product to give it a good ole college try. The pamphlet states to see results in 3 weeks . It is now almost 5 weeks later and no change and the roaches seem to be nesting behind the plugins because they provide a great heat source. I think I want my money back. They do make great night lights though. Very unsatisfied with this product.

Does not work at all. I left it plugged in for about 4 days and saw no improvement in my gnat infestation. Returning. A solution that actually works which I came across on Youtube is via a cup of apple cider vinegar covered with a plastic wrap with holes (see picture; note this picture was taken 3 days after setting out the cup, on the first day I didn't see anything in the cup either). I am going to put more of these cups around my house. Take the positive reviews here with a grain of salt.

I've had these plugged in for months. Way past the open return date. How do you know if it works? Sure there are lights on but since you can't hear the sound how do you know it emits any? Regardless, I've caught several mice in traps and had a spider make a web right in front of one so I don't believe they work.

Didn’t work for me..maybe my own fault...but make sure you plug it in somewhere low not high up like i did..i fainted for the first time after being beside it in the kitchen, it was about to the level of my head plugged in an outlet. Don’t know if I fainted because of that, but ever since I unplugged it i never had it happen again,it’s been since September and too scared to try them again lol.

After using it for a week, it seems like there are less mosquitoes in the kitchen comparing to the large number of those in the beginning. However, it is not effective as expected. I've been putting two of this in the kitchen for a week, and the expectation is to eliminate all mosquitoes in a week. However, it hasn't met my expectation yet. Nevertheless, it works but it takes time.

I set these up in a pumphouse and a small trailer at avacation property last fall. They have done an excellent job of keeping the mice away over the winter. No more problems within days of setting them up.

It doesn't work; I just found that the rat, mice are having a feast with the dog food.