FishOaky Ultrasonic Pest Repeller, 4 Pack Pest Control Ultrasonic Repeller Plug in with Night Light for Mice, Rats, Rodents, Bed Bugs, Ants, Cockroach, Mosquitoes, Spiders, Bugs, Fleas, Roaches

These work 100%. These will drive out all the spiders etc for the first day or two and then you won't see them again. However, while I can't hear these when they are plugged in, they drive my children mad. Apparently then can hear the high pitch tone. For that reason I can't have them turned on when they are in the room. They aren't able to hear them unless they are quite close. Just bear this in mind before purchasing.*Revised my three star rating to four star as I seemed a bit harsh! They do work perfectly and having a multipack is handy. I would have liked to have all of them on all of the time though

We have got it as there was a plague of spiders in our village and we wanted to prevent them from coming to our house as September is the time when spiders look for shelter before winter.I have no idea how it works but since installing it we've had less and less spider nets around the house.The only bad thing about it is that it's round and quite wide so can only be installed in wall socket.Extension lead is out of question as the plugs are to close to each other and round design doesn't fit.Other than that it's a great product. Our cat doesn't mind it.

Mum really, really likes these. Our last ones (different brand) just stopped working after a few months and the insects came back, a day after we put two of these on (one in the living room and one in the kitchen) we immediately noticed a decline until the insects vanished.Compact design, so you can use the second plug easily and all you do is plug in and switch plug on.

It is good and I have to test it for long time then I can exactly give my final note.

Had them a while now, can really say save your money there crap. Do Not work.Save your money.Worst buy.

Not had any bugs since using

Rubbish, like the others, save your money, DO NOT WORK, NONE DO, I HAVE BOUGHT 6 DIFFERENT TYPES, THEY DO NOTHING AT ALL.

These pest repellers are simple to use and silent when in use.Although its early days, only used them for a few days so far, and the instructions suggest that a period of about 3 weeks is required to have a noticeable difference. But within a couple of days I have noticed that a few spiders have started to come out 'of the woodwork', which I was not expecting but is stated in the manual that this can occur, as its driving the critters out of the space (home, office or warehouse).So far, i can not fault these, they work well, they are silent when in use, and also only take up one plug socket in a double wall socket.Note, the manual states that these should be placed off of the floor, on the wall (so plugged into a wall socket and not a extension lead) and normally 1 per floor.