Transonic PRO
The Transonic PRO is a low-profile electronic pest repeller that uses both sonic (audible) and ultrasonic (nearly silent to humans) sound waves to keep small pests out.
The plug-in device covers up to 3,500 square feet and repels rodents, bats, and spiders without chemicals or traps.
Manufacturer: Bird-X
Web Site: www.bird-x.com