pergoodsUltrasonic Pest Repeller,6 Pack Electronic Plug in Mice and Rat Repeller, Pest Control Insect Spider Repellent Mice Repellent Bugs Control for Spiders, Ants, Mosquitos, Flies (pink)

So far so good since had theses had no spiders apart from one so happy so far

Wasn't effective

I'm not sure if there's even anything in the housing, given how light these are.Either way, they don't seem to discourage mice at all.Get a cat instead!

Easy to install and very efficient. Mice disappeared

Unfortunately, this hasn’t worked in my house.

We had mice in our loft and bedrooms which we could hear throughout the night. I plugged in the units mid afternoon in the lofts and each bedroom, by night time we had no signs of mice and a few days on we are still mice free. I would certainly recommend this product.

Great work well

All say to set up and seemed good value.However, we still had to call a pest-control company. Maybe they’re a deterrent but I can’t say it solves problem entirely.