Ultrasonic Pest Repeller Plug in 4 Pack, USCVIS Mouse Pest Controller Ultrasonic Insect Repellent for Ants, Flies, Moths, Spiders, Ladybugs, Cockroach, Mice, Fleas, Rodents, Mosquitos

Absolutely worthless didn’t effect on even one fly sitting in top absolutely waste of money.I won’t suggest people buying it

Great bit of kit! Very stylish and discreet!Makes a little click noise every so often, guessing that’s to remind you it’s there?!Easy to install, since fitting in my boiler room no mice or evidence of such.Seems to work straight away that I purchased more for the other rooms in the house.I am happy with the device - money well spent.

Seems to work. One case came apart easily and there must have been a deaf spider that built a Web next to it but did not stay for long. Follow instructions as best you can for positioning and allow a good week for it to annoy pests before they move out. Seems to be a summertime lack of pest improvement.

II was plagued by large spiders coming in from the garden, I have used them for over a week now, and touch wood, to date have not had any.The only drawback I find is that it is recommended that they are plugged in at a height of 1000cm above ground but all my sockets are low and if you use an extension lead you cannot plug the item in because of the shape or you have to plug in upside down

Sorry for late reply, I’m so disappointed with these “ultrasonic insect repellent” I bought this couple months ago, the main reason is for flies and spider but it doesn’t repelling and I noticed even by now attracting more insects also more spiders.

4 plugs 1 stopped lighting up after a few days. We still got insects like flies and spiders so I can't see how their supposed to work, might take one to pieces, so watch out for that review.

Arrived on time. Really good pest repellent. I don't see any pests whatsoever, works really well. I love the blue light at nights. Brilliant bit of kit! 👍

Fantastic thanks