Adjustable ultrasonic frequencies With over a decade of experience in the pest control industry and continuously trialling and testing our products, we truly understand the behaviour of cats. The frequency dial allows you to fine-tune the ultrasonic frequency to the specific problem cat that you’re trying to rid out of your garden. As cats age their hearing ranges deteriorate, this feature allows you to adapt the frequencies to make sure the device works to solve your cat problem. We’re so confident in this product that if you don’t see results in 60 days we’ll give you your money back.