Pest Repeller-Ultrasonic Pest Repellent Electronic Pest Repeller Professional Home Plug Electronic Indoor Repeller, Repels Away Rats Fleas Roaches Bugs Rodents Mosquito Insect (4 Pack)

I had a similar item which stopped working a few months ago (no lights and suddenly I could hear it chirping away) and because it seemed to have worked I thought I would pre-empt a mouse invasion by getting these. That didn't work, very soon after these were plugged in the evidence of a nigh-time visitor to my kitchen became apparent. I think its only one mouse, but it just keeps coming back. I catch it in a humane trap, release it in to the garden and then it is back a couple of days later. Even a deterrent spray and these electronic devices aren't keeping it away, could I possibly have the only deaf mouse with no sense of smell visiting my house every night!? When I catch it I can't even take it further away as at th moment we are on lockdown!

I’ve had these in the house now for a couple of days. I’ve noticed the small irritating flies are not as many flying around. I have them in 4 rooms so basically all over the house. I haven’t noticed any flies around. I don’t have rats or mice or cockroaches so can’t say anything about those critters but as for flies etc. Working for me.

Unfortunately, these repellers didnt work for me. I have been using them for 6 months+ and the pesky little mouse is still around. I bought 4 for my small flat. My flat is very clean and I have taken all the necessary precautions to be as mouse free as possible - these items were my last resort and the pesky little thing is still around. I can hear him at night time gallivanting around to his hearts content. Either the pesky mouse wears ear defenders or these items simply don't work for me.I contacted the seller about 5 months ago and they told me to give it more time. It's 5 months later and as far as I am concerned this method didnt work.

So far so good, has done the trick just the odd spindly spider but I can cope with them. Found an earwig the first time I plugged them in but nothing since. Best purchase i’ve made in ages.

I had it a week. Flies still came in, gave it a few days as it was mentioned pest activity may increase. Suddenly one of them stopped working. Have had to get refund.

Not sure they work as still get lots of flies if door of window is open

As soon as I plugged these in, I heard a crackling noice which was disturbing and the light flickered so I had to tap the plugin to stop the flickering. These now no longer light up so I don’t know if these are emitting any sound at all as they don’t appear to be working.

They have not worked.