Ultrasonic Pest Repeller Indoor Use Only No Sound, No Chemicals, No Poisons and Odorless Specifications: Power rate:3-5W Power source: 90V-250V Operating temperature: 0-40Ultrasonic Frequency: 22-65KHz Effective coverage area: 800-1,200 sq ft Repels Mice, Mosquitoes, Rodents, Roaches, Ants, Spiders, Rats, Fruit Flies, lnsects, Bed bugs, Fleas, Bugs, other insects and rodents indoorEasy to Use: Just plug the electronic pest control ultrasonic repellent in power sockets, it will start to repel the pests when the blue light on. Easy to use and no need to clean up dead bugs and keep your home always clean. Suitable for Different Places: Newest pest ultrasonic repeller that will help you get pests out of your home, office, hotel, warehouse, restaurant, cafe, BBQ place, backyard and apartment etc. Human Pet Friendly: Ultrasonic waves are inaudible to humans and household pets, only cause discomfort to the pests you are trying to repel. No poison, smell and chemicals, sinificantly safe and harmless to humans, children and pets. Wide Coverage: Powerful ultrasonic wave covers up to 1200 sq. ft. Since ultrasonic waves cannot penetrate walls and solid objects, we recommend you to install one for each room can achieve the best result. Mostly can see the electronic pest repeller results within 3-4 weeks! Then we can say goodbye to pests and mice!. Upgraded Frequency Conversion Technology: Ultrasonic pest repeller features a frequency conversion dual-wave technology. It can stimulate the brain and auditory nervous system of pest to keep your home safe from a wide variety of pests such as mice, rats, mosquitos, ants, cockroaches, spiders and more.