1. Safe and easy to use: This product is harmless to humans and pets. It has no harmful chemicals and no smell You will no longer need a bug zapper, mousetrap, or any of the other confusing strategies usually used to get rid of pests. 2 How it works: Ultrasonic repellents feature a mix of highly efficient ultrasonic frequencies that are undetectable to humans but extremely irritating to rodents and insects, thus causing them to scramble to find a quiet place and will be forced out of your home. 3. Safe for humans, pets, and children: Sound waves are inaudible to humans and will only cause discomfort to the pests you're trying to fight off. 4. Smart variable technology: Variable technology frequency emits waves of varying wavelength to ensure that pests are not immune to sound. 5. Efficient, Quiet, odor-free: Unlike other pest control methods, these repellents are silent, don't use any chemicals, and don't require maintenance