Like everything else people try to scam others for a profit, Riddex Plus is one of them. I did everything the intructions said and plugged 2 of them in my house which is only 1524 sqft. I am still trapping mice in my cabnits which sit above where one of the units is plugged in. I am very upset that I bought this product, but in sales their is a saying " There is a sucker born every second", and I became that sucker. I should of did my research before investing in a product that does not do what it says it does.
