1. [Exterminating Pests for Your Home] : Our ultrasonic insect repellents emit high-frequency ultrasonic waves that interfere with the hearing and nervous systems of pests, making them uncomfortable and keeping pests, mice, rodents and mosquitoes away from your home. 2. [Human/pet friendly] : Ultrasonic rodent-repellent physically destroys the living environment of pests, affecting only pests and mice. Ultrasonic pest control is safe for children/pregnant women/elderly/pets. Can I use it as a night light 3. [Easy to use, no noise] : Just plug our ultrasonic repellent into the socket. It works when you notice that the blue light is on. Make sure there are no obstructions such as curtains or cabinets in front of the mosquito repellent. Note: Our ultrasonic repellents take 3 or 4 weeks to see noticeable results 4. [Extensive coverage] : Insect repellents can effectively cover and control areas up to 800 to 1200 square feet per unit. Since ultrasound waves cannot penetrate walls and solid objects, it is recommended to place one in every room. 5. [Wide application] : Indoor insect repellent can be used in bedrooms, garages, kitchens, offices, warehouses, flour mills, food processors, furniture stores and other places where bait or pesticides cannot be used.