About this item ADVANCED DOUBLE POWER IMPACT: New Electromagnetic & Ultrasonic technology for powerful impact. Where poisons and pesticides work on only a few pests at a time, the ultrasonic pest repeller works on a wide variety of pests such as rats, mosquitos, ants, roaches, spiders and more. ENTIRELY SAFE FOR KIDS & PETS: The low frequency electromagnetic sound waves are inaudible to the human ears as well as pets, so you do not have to worry about harming their health. There are NO poisons, chemicals and traps! Its perfectly safe for children, pets and pregnant women. IMPROVE HEALTH & CLEANLINESS: Simply plug into an electrical wall socket. You can completely get rid of mosquitoes, fleas, ticks, mice, moths and so on. No need to clean up dead bugs and keep your home always clean. ULTIMATE INDOOR COVERAGE: The pest control ultrasonic repellent is effective for an area up to 1200 sq. ft. You can use our ultrasonic pest repellent in any indoor space such as your house, garage,office,company,restaurant,warehouses etc. We are confident that your space will remain pest free.