They don't work. I have six, one in each room, for a month and still had mice and crickets. So they told me to leave them in for another month as one month is not enough time. So now my 30-day money back guarantee is expired, and I still have mice and crickets in my house. Let's see if this review gets posted, my guess probably not.
Bottom Line: No, I would not recommend this to a friend
34 people found it helpful
Link to this Review