BRISON Ultrasonic Plug in Device - Electronic Portable Pet Sаfe (2-Pack) - Еlectromagnetic Waves Ultrasound Control - Rеpеllent for Micе Rаts Mоsquitos Spidеrs Rоdents Insеcts - Indoor/Outdoor

Scam, it does not work for mice. I saw a mice eating besides the device.

I was having a pretty crazy flea problem, where I tried virtually everything to get rid of those nasty buggers. Borax, essential oils, flea powder, you name it. I would just walk in the house and find fleas all over my legs. It was gross. So, I decided to try these thingies. At first, I didn't think it worked. Days went by and the fleas were still there. I was actually kinda pissed. But I gave it some time. I think it was about a week or 2 later when I noticed there were no more fleas crawling over me anymore! That was a big plus, so I figured it was working! Still, I haven't had anymore issues with the fleas, so this had been a lifesaver. However, I will find the occasional roach or spider crawl in, but my cat just eats them up which is cool. I'm assuming if I didn't have these plugged in, the pest problem could be much worse. So, I'm gonna say these do a pretty good job keeping the buggos at bay.

After reading about electronic pest repellants, I was skeptical that they could actually work. However, when my annual ant invasion started in my kitchen this Spring, I decided to check them out. There are so many brands, most with mixed reviews. But this one had totally positive reviews! So I chanced it. After plugging it in, I saw only one ant the next day, and absolutely no ants since then. I'm shocked -- and so pleased! I've only had it plugged in for a few weeks, but so far so good. If the effectiveness changes, I'll post an update, but for now it's 5 stars!!

I never write reviews, but people need to know that these things are worthless for mosquitoes. I plugged in 2 of these within 10 feet of where I was sitting on my deck and the mosquitoes were flying all over me the whole time. Even saw one land right on one of these devices! These are going back to Amazon!

Had a furry critter issue in my garage...I saw evidence of them but never one in the flesh until about 10 days ago when I went to the garage and opened the light and saw one scurry away. I didn't want to do anything cruel to them so I bought these. One in the garage and one inside the house. Have not seen one "piece" of evidence that they are still coming into the garage and the mosquitoes and other flying things are virtually non existent. Living in So Fla the flying things are a menace and so this is great news!

Can’t really review it until some time has gone by. States it can take up to three weeks to see results. I am using them in my garage/carport which has only two walls (garage door and a door to its left). Older house and I keep finding a pile of what I think is mouse poop in one spot. Don’t want traps and natural products (bleach and peppermint oil) didn’t stop the little poop machine. Let’s hope this works. Otherwise I’ll be asking for a refund in three weeks. They’ve been in since purchased. I still see from time to time mouse dropping’s

I placed one device in the basement and one on the second floor. On the first day I noticed a spider in the basement that had build a web about 10 feet from the device and seemed to have no problem just hanging around. I figured I'd give the device time to annoy the spider so I left him alone to see if he'd leave later. I checked on him every once in a while but he was still there. Pretty soon, another spider moved in next to the first one. They seemed to get along great and didn't seem to notice the device or hear its ultrasonic message to get lost. I gave up on it after 30 days and returned them for a refund. I suspect this device is nothing more than a blue LED inside a plastic case and all the positive reviews are either faked or their authors are Democrats.

I am very confused... almost 100% positive reviews... but my garage is still full of spiders, ants and fleas...