Ultrasonic Pest Repeller,4 Pack Upgraded Mouse Repellent,Electronic Pest Repellent Ultrasonic Plug in,Mouse Traps Indoor for Home,Warehouse,Kitchen,Spider Repellent for House Indoor

These are well priced and have worked well

This is a total ripoff, I showed these to a friend how works at a pest control company, after he finished laughing he explained that they are a total waste of money ( I agree I used them according to the instructions and noticed NOTHING) don't waste your money on these cheap Chinese products.

I purchased these to test against a cheaper model. Yep! you get what you pay for. Placed 3 of the cheaper units around an area of high rodent activity; after a month there was no change. I swapped out the cheap ones with these and the activity stopped immediately. Also in the areas where I placed these, I find more rodents being chased out to where they get caught in my sticky traps. No mice in the sticky traps by the cheaper ones. Coincidence?

Rats are gone seems to be working good

Unfortunately, after using them for a while I realized they don’t work at all. Roaches and mice find their way in even when my house is full of these traps.

After a couple months of using this electronic pest deterrent, I caught a mouse on the floor directly under the electric wall socket in which it has been plugged. I was hoping this would be a good alternative to poison or bait traps but I guess not. Even the spiders continued to pop up here and there and webs would appear occasionally. So, it's not even working on those. Nothing more than a drain on your electric. Too bad. I only give it two stars for the shipping and ease of "use."

Best thing ever, was spending money on stuff I had to put out every 3 months, and it wasn't foolproof, this is and it even kept away the racoons and the birds from making a nest in my garage on my garage door opener! Just plug them in!

I bought this hoping to keep chipmunks out of my garage. I spent $1100 on fixing the wires the chipmunks chewed in the hood of my car. I still see a chipmunk or two on occasion in my garage even after I have these plug ins. Needless to say, I don’t put my car in the garage anymore!