Pest Repellent Device is exceptionally easy to use. Plug in the pest repellent device directly to the outlet and the machine starts working immediately after plugging in. The product has a coverage area of about 1800 square feet and the waves transmitted by the device disrupt the central nervous system of the pests, hence making the area pest free./br/brSAFE FOR HUMAN & PETS: The ultrasonic frequency of the electronic mosquito repellent is inaudible to humans and pets, environmental-friendly,The rodent repellent ultrasonic plug-in does not eliminate insects, but removes them from the covered area without using chemicals or smoke, which is an ideal choice for anyone who does not want to clean up for a long time. EASY TO USE: Just plug the electronic pest control ultrasonic repellent in power sockets.This time the machine began to work when the blue light on. Most customers can see the results within 3-4 weeks! Then we can say goodbye to pest and mice!. WIDE EFFECTIVE COVERAGE: The product is effective in an indoor area up to 1800 sq. ft. It's widely used in homes, warehouses, offices, gardens, hotels, etc. We recommend you to install one for each room because the ultrasound cannot penetrate walls and solid objects. But for areas with serious Vermin, we suggest install 2 or more devices for other room. They aren't effective for other rooms if you install device at one room. Two light modes:The light can be chosen - on and off, it is more effective to turn the light on, the light can also act as a small night light. Your sleep won't be disturbed.It can also be used as a night light. It's advised to turn on the light for a better effect of repelling mosquitoes. 2023 UPDATE TECHNOLOGY: The dual ultrasonic and electromagnetic chips of our ultrasonic pest repellers emit frequencies ultrasonic interfering the auditory and nerve system of the pest, making them feel uneasy and uncomfortable so that pests, mice, rodents and mosquitoes away from your home./br/brGTIN: 705690551183. Best Sellers Rank: See Top 100 in Health & Household. Target Species: Cockroach, Fly, Flea, Mouse, Rat, Mosquito, Ant. Is Electric: Yes. Number of Pieces: 2. Style: Modern. Brand: Bolners Fiesta. : B0BTWBVSPJ. Manufacturer: Bolners Fiesta. UPC: 705690551183. Item model number: M26JJ995. Package Dimensions: 5.28 x 2.76 x 2.72 inches 5.93 Ounces.