VENSMILE Ultrasonic Pest Repeller - 6 Pack Electronic Plug in Pest Control - Pest Reject for Mosquitoes, Mice, Ants, Roaches, Spiders, Flies, Bugs, Lizards, Non-Toxic Eco-Friendly, Human & Pet Safe

I'm not so sure this is working. I just got it yesterday, and the rats in my walls are still partying. I'll update this if it changes, improves, or doesn't work. In addition, I'm going to buy another set of different ones to bombard those little beasties so they'll leave for good. I hate hearing the running, jumping, digging and chewing.One thing I can say is, after I plugged a couple in near where I hear them the most, I put my ear to the wall and heard one of them squeaking. Maybe s/he had something to say about the change to her/his environment. Or, s/he's laughing at me.**Update: It is now 3 days later. At first, I heard all the usual activity in the walls and space b/w ceiling and roof, plus some new scurrying around above the living room and great room/dining room area. Then, last night, I only heard a very little activity. Today and tonight: nothing. Not a sound. No footsteps, no chewing, no digging. So, maybe this really is working. I'm going to wait a few more days, and, if no activity, then I will add another star or two to my review...Also, I learned this today, as I was patching some holes in my garage walls with steel wool to keep them out: they chew through concrete and drywall. They actually created their own doorways from the outside to the inside of my garage, and caught an area along another wall (behind boxes and fixtures) where they were working on another entrance or two. Wow! What persistence and ability. Who knew?

I don’t think it’s meant for mice. We were sitting in our patio when a mouse came from a side where we had one of the devices, walked along the wall and over the next device to the next side. There are bugs flying around, so I don’t think it’s that effective.

Moving to the south it was a little upsetting how many creepy crawlies there are. We bought these shortly after moving here and they seem to be doing their job. Only had the odd bug in the house but that’s a rarity.

These things don't work at all. I put four of those in a room and today I saw a mouse right in a middle. Deffenetly waste of money.

works good for spiders, don't know about all the other critters cause I didn't have them.

Bought 2 sets of these in two different homes to repel ants. It's been more than 60 days and still seeing ants. Some crawling on unit it self. Waste of money.

Ants crawling all over the plugged in repellant......... mosquitoes still singing in your ear! I didn't give any rating, because it doesn't deserve one! The name on it is "Pest Reject", but it should be "consumer reject" because it's no good!

Great