Sijay Ultrasonic Pest Repeller Plug-in 2-Pack Indoor for Mouse, Spider, Insect Repellent Electronic Repellant to Control Rodent,Mice, Roach, Ant, Mosquito, Fly, Bed Bug- no Traps, Spray & Baits

Does not work! I bought two and installed them in my house. One in the front and one in the back of the house. I am still getting ants in my house. They are literally crawling on the wall next to the unit. Next time I see one next to unit I’ll take a picture and add it to reviews. I just went camping and had a unit plugged into my camper. It didn’t seem to help at all.

Seem to be quite effective! I've placed one in the garage and have noticed a great reduction in flying pests--particularly of the wasp variety! It has been freakishly warm in North Texas and the wasps are virtually swarming. I also place these in the floor vents to prevent mice and bugs coming in from cracks in the ductwork, and this has proven to be very effective as well. What a relief to not be awakened by mice scratching around in the ducts! (I'm renting an old place in the country that needs work.) And, no, I don't have pets.

I had a mouse in my house and refused to use insecticide to get rid of it. I have pets and was adamant about using traps or poison to get rid of the rodent. It has been 3 weeks since I plugged in the Sijay Ultrasonic Pest control. I have not seen the mouse in my house since.Thank you.

I didn't have any bugs when I purchased this; I bought it as a deterrent. I plugged it in in a corner of my kitchen. I have since had a pesky problem with tiny black ants -- and they're only in the area of the kitchen near the outlet where it's plugged in. (Nowhere near the counters or food). I'm not saying it attracted them, but it's not repelling them.

Nice blue lights... Makes a good nightlight. Rodents love it.

I have had them for 4 months now. they are the best invention and NO smell!!!

It works for pillbugs and ants. It took some time for it to work so just wait

It took a while for it to work almost a month but you really do need one in each room. All they did was just move to another room ughh have to buy again. So if you have more than two rooms get more. They do work just takes a really long time