morneve Ultrasonic Pest Repeller 4 Pack, Indoor Home Defense Pest Control Plug in, Pest Repellent Ultrasonic Pest Defender for Mice, Spiders, Insects, Bugs and Ants…

I am so impressed. We have a constant battle with mice getting in and I have seen no evidence of mice since I plugged these in. This is a fabulous effective, harmless, easy way to rid your house of critters!!! Highly recommended!!!!!!!This comes as a multipack of 4 which I also encourage because it gives you a larger area of coverage!

Well, so far we haven't seen any more stinkin' mice. I assume these plug-in mouse deterrents are working. But then, I was so frustrated with finding evidence of mice in my house that I have been using everything I can that clams it will get rid of mice: Ultrasonic plug-ins, peppermint oil on cottonballs in all the cupboards, sticky traps (no mice on them), regulars spring traps (caught on mouse) and peppermint spray everywhere those little buggers might come in.

Had the item for over a week now. Useless is too weak a word for it. Had to get the exterminators in. A home for these creatures was only 1 yard from a plugged in unit didn't even bother them. A 4 sq meter room had 3 units in it. No effect whatsoever. Was this down to teh voltage difference 120v IS 220V EU and as had US plug was this set inside for US voltage? I don't know but wasted money.The product is small and light. Just plugged the first one in. Big problem was that as it was coming to the EU it would have had EU plugs on it but no, US plugs. So now I have to drive around 20 miles to a shop that sells converters from US to EU. If they had said that in the description that you only have US plugs sizes I would have ordered converters at the same time. I hope it isn't only for the US power supply of 120 volts or it will burn out on 240 volts here in Spain

Saw a mouse last night. after not seeing them for month. This has to be one of those plug ins that lose the ability to keep them away. was hoping it would last longer than this. Another waste of money.I have never seen this many roaches in my kitchen. Ever! it seems to be attacking them. i bought this in mid November it’s Dec 2. The instructions said you would see more activity about a week or so. When does it stop??! I’ve never seen roaches like this! Even with other plug in products i’ve used. i was trying to get help with the mice not adding a roach problem to it. I’m just wondering what to do now. i’m spraying and this thing just seems to being more in!

This worked great for my roaches that have infected my apartment get yourself one and they light up so it's perfect.

To be honest I haven’t had them that long I do see a decrease in what I first saw but I do still have a problem. I brought this for water bugs that crawl through my vents. I put them through out my apartment and they say you will see an increase in bugs then it will decrease . I brought the riddex but I haven’t put them up as of yet been gone for a little while I will do a follow up review

They say it works against mice. Roaches and other insect and recommend 1 per x sq feet. I placed 2 in each of the recommended areas in ea h room and still see rodents. I have ocd because of this and really thought this would help, but no luck.

After seeing some mouse activity again, I plugged in three of the repellers this morning. While I was sitting in the living room, and after about five minutes of the repellers being plugged in, two mice went running across the floor. Hoping that they will work and get rid of the mice.