I also heard a lot of people saying that electronic pest is a waste of time and money. Anyway, I wouldn't do this myself. I would contact a professional who knows how to do this job than doing it by myself. I had some bed bugs once, and I couldn't get rid of them. I had tried everything that I had found on the Internet. But nothing helped me. So, I contacted a pest control service from this site https://brightpestcontrol.com.au/pest-control-geelong/ , and they came in the same day I called them. They used non-toxic pesticides and that was all their work. After that my bed was clean and I was safe.