What every best has:
Riddex Plus is a small, iPod-sized device that plugs directly into a wall outlet; according to the company, it uses "patented Digital Pulse Technology, powered by a Freescale Microprocessor, to help create an irritating environment for pests inside your walls." In other words, it is supposed to emit a high-pitched hum that repels roaches and mice. However, most reviews indicate that users are highly disappointed with the Riddex pest repeller.
Most of the owners posting on Amazon.com say this product simply doesn't work, and a smattering of rave reviews on Epinions.com are balanced out by one-star pans, including an in-depth review by one dissatisfied owner. A site called Complaints Board also contains numerous complaints not just about product performance, but also about Riddex's shoddy customer service and unexpected charges incurred with ordering multiple products.
More tellingly, tests conducted by two TV stations -- KHNL in Honolulu, Hawaii, and WSPA in Spartanburg, S.C. -- indicate that Riddex Plus doesn't repel test batches of rats and cockroaches. In fact, a Clemson University entomologist interviewed by WSPA goes so far as to say products like the Riddex Plus simply don't work.
A few users on Amazon and Epinions rave about the Riddex Plus, even going so far as to trash people who have left negative reviews. A blogger at JennyReviews.com also praises the device, but admits that she didn't have an existing infestation when she purchased two Riddex Plus pest control units, so it's difficult to judge whether they actually worked, or whether she simply didn't have any bugs in her house in the first place.