Ultrasonic Pest Repellent 5-in-1 Indoor Pest Control Repeller With Electromagnetic, Ionizer & Auto Light For Mosquitos,Rats, Spiders, Rodents (HR2121)

The problem to feed my dog in the backyard is there's always a small flies or insects bothering her when she eats the breakfast outside. I shopped around and tried this little device temporarily this week and I am very satisfied the result that I get.

Product is easy to use, seems well built, and I like the idea of a non-toxic roach removal solution. However, it fails to deter roaches. After leaving this device active for a week, I went back to my art space in an old building to see if it eliminated roaches. Six feet from the device is a small cabinet. When I moved the cabinet, many roaches came scurrying out from underneath it. If you have a cockroach problem, don't expect this device to solve it. Try some strong cockroach spray or bait traps instead. I cannot speak to the device's effectiveness against other pests, so I'll give it the benefit of a doubt with 2 stars.

First off I received the 5 in 1 instead of the 6 in 1 as advertised. So I'm sending it back... but.. with that said, I did plug in the unit to see if it would help our pest issues.At first, I wasn't sure if it was doing anything because we stop hearing the noises of the rodents in the walls. Thought it was a good sign, but we rarely hear them regardless. Then 3 days later, we had a large rain storm and sure enough the noises were back in the walls, just not in the same place as before. Same room of course as the 5 in 1 unit. So, in summary, maybe it works, but not well in a 10 by 10 room. Perhaps it was coincidentally, that the rodents moved in the room or maybe the unit caused them to move, either way, it didn't get rid of them.This coupled with the fact that I received the 5 in 1 and not the 6 in 1, is why I will be returning. Maybe the 6 in 1 is better.On a side note: the unit does make a high pitch noise that is audible to the human ear. It cycles 3 different tones. 2 of which can be heard by both my kids and my self. Slightly annoying.

I have several of these in my home and I know they work great! Have no problems with bugs over the years with these.

Didn't work at all. I saw a mosquito flying near the device and wasn't really repelled The mosquito just hung around the vicinity flying around

So far so good I've been using it for about two months now no sign of any rodents.

Works great.

Does not work as stated, still have critters in my house and have several of these in use.