Set of 4 Ultrasonic Pest Control Repeller -Electronic Plug -In Repeller for Insects- Best Repellent for, Cockroach, Rodents, Flies, Roaches, Ants, Spiders, Fleas, Mice – White

I bought this device due to my friend recommended this ultrasonic mouse repellent to me.Well packaged and timely delivery. After receiving this device , I installed in my living room and bedroom immediately. it works on every occasion. We didn’t see the mouse since installed this. The traps I bought were useless for days.another surprise is that the mosquito seem to be afraid this repellent, the zoom didn’t be heard too. We can open the windows when we sleep."

Unable to objectively asses effectiveness. Can't say it doesn't but still see roaches in kitchen.

Worked for about a week.

They really work, give it a month!

Not performing it's function. Still have problem with insects and rodents. Have had these for a month now.

wORST THING

Not effective 😭