Plug-in rat and mice deterrent 'amazing' at banishing rodents

Nothing puts a dampener on year-end festivities, or indeed festivities at any time of the year, quite like a pest invasion. Whether there's a mouse living under your oven, your sugar bag's become a hyperactive ant colony, or your cat just can't be bothered to chase rats out of the garden, there's a solution that should send them all packing.

Right now, the at Amazon. These 8W devices are a sound-based deterrent that doesn't cause any harm to any unwanted invaders. Simply by creating a horrendous aural environment for them, they'll thick twice before coming back to your home.

All you have to do is select between three different frequencies, rising in intensity, and simply wait for the effect to kick in. Many people can't hear while it's working, but if you can, it shouldn't be too harsh for humans.

They've got a solid range on them, covering 140 square metres each, and they should have an effect on a wide range of pests, including: mice, rats, mosquitoes, moths, ants, cockroaches, beetles, bedbugs, flies, and more. If you're not satisfied, you can even claim a refund.

By and large, Amazon customers don't seem to opt for the refund. At the time of writing, these devices have a

"The Ultrasonic Pest Repeller offers an effective and eco-friendly solution for deterring a variety of pests. It has multiple working modes, a wide frequency range, and is easy to use," said one five-star review. Another said: "I have had a severe mouse infestation in my home, in the kitchen, living room, bedrooms and bathrooms, but since I started this Ultrasonic Pest Repellent the mice have disappeared."

"This worked well! After I plugged them in, the mice disappeared! I'm happy with the purchase and will buy it again," another reviewer concurred.

Some have had issues with it, however. "I don't have mice or rats but lots of insects so I don't know if it works as not seen any difference," said one reviewer. "It would be great if it gave you the option to turn off the dim light it has, as it's a bit annoying at night if you're someone who needs a very dark room to sleep well," said another.

If you'd rather go for a more familiar brand, this repeller from . This one is