Ultrasonic Rodent Deterrent Mouse Repeller Plug in Squirrel Repellent Indoor Mice Deterrent 4 Modes Repel Rodents Rats with Ultrasound Waves

This thing works surprisingly well! Really pleased with how easy this is... of course better to set up before issues may happen... but is helpful even after issues with infestation. I used this along with live traps which helped.. and now I just use this and it does the job great .

I placed this under the hood of a car I left stored for a couple of months. I left it in the dual mode on level 2 (because level 3 is very audible to people). I came back to find the car battery terminal cover slightly chewed on and rat turds around. Note that one of speakers was facing the battery and this was a small space. For this reason, I say this product is ineffective on rats. I wouldn't trust it to protect an area you don't want rats in. Not sure if it is equally ineffective on mice, but why wouldn't it be?

It got rid of our mice in the walls- put one under the house - it varies the sound and frequency patterns. It has annoying flashing lights too. So far I highly recommend it.

Have to keep it on #1, because the higher settings hurts our Ears and really hurts our Dog’s and Cat’s Ears/hearing. They wouldn’t sleep and kept crying and pacing. After we put it to #1, they calmed down. When we turned it off, they finally could sleep. I cannot believe how the high frequency was heard and hurt our Human Ears and Animals’ hearing is tons stronger than our’s so, no wonder it affected them so much. Even with it on low and high, the damned destructive Squirrels still remained and chewed wires, phone lines and insulation. Pooping and peeing in insulation and ceilings.

Work great for rats and mice but the squirrels seem to laugh at them.

The particular mice I'm having trouble with just aren't much bothered by it. There seemed to be less activity, but they certainly weren't gone. The landlord set some traps and has caught them, so I'm not too bothered that this unit started to malfunction today. I can clearly hear the sounds today, so I've just unplugged it. If they start coming back, I'll try another brand instead. The final return day is tomorrow, but I don't have time today or tomorrow to get this shipped back.

It really works!

Ordered 3 units one did not work at all. Would not power on the other 2 have sound emitting from them that bothers my ears so I know it will bother my pooch…. I live next to a house that has been abandoned for a few years and the owners decided to do something with it and started construction…. Got these as a precaution because I dont want any issues…. Guess I gotta go back to the drawing boards. For my need the cost worked great but cant deal with the sound and the defective unit….