Defender Pro Ultrasonic Pest Repeller 2 Pack Upgraded Ultrasound Bug Repellent with 3 Output Frequencies Works on Mosquitoes, Cockroaches, Crickets, Mice, Spiders Effective Indoors

Easy to read instructions, this product is working for me, if I ever need to use again, which I shouldn't, but would purchase again. Good price.

Works well but I can hear the sound of it.

Very disappointed with the results of these units. I installed them ,they were in place for about a week and acclimated to the area and still had a mouse ,then I set three regular mouse traps. I got 5 mice in three days ,SO in my opinion these units did NOTHING.I had spiders which doesn't concern me as much as the mice. A disappointed customer. The advertisement is exciting to think this little device would eliminate my mouse problem as well as the listed being claimed.Bill M

The product came fast and good packing, and it was super easy to install, just plug in!I used it for a few days, didn't see any cockroach.

It seemed to work well the first two weeks but it has stopped working. We have had 2 mice this week in the room that this is plugged into. I'm going to buy a different brand today.

I use two of these devices in my attic to keep the bugs out, I have been using them since February 2020 but there were not many bugs coming in during the winter. Now that the bug season is back, I have not noticed any cockroaches, spiders or other bugs in my attic.

New apartment with cockroaches. Plugged this one by the front door and one in the kitchen 7 days ago in a small apartment. It's definitely working.

HAVEN'T USED IT LONG ENOUGH TO SAY ANYTHIMG ABOUT ITS EFFECTIVITY