The Pestclear Slimline 2500 uses the electrical cables in the home to transmit a very low-frequency sound, called infrasound, which cannot be detected by humans, cats, dogs, fish, reptiles, or birds, but which is very disruptive to rodents such as mice and rats, and some crawling insects. It has a unique 'Pet-Safe' setting, making it suitable for use near rodent pets like hamsters, gerbils, and rabbits. The device features two separate programmes for the electromagnetic signal, allowing you to target specific pests with very specific frequencies.