SYOSI 4 Pcs Electronic Ultrasonic Mosquito Repellent, Plug in for Insects, Indoor Pest Control Living Room, Garage, Office, Hotel

• UPGRADED & FREQUENCY CONVERSION TECHNOLOGY: This pest control ultrasonic repellent works by emitting a disorienting pulse. • WIDE EFFECTIVE COVERAGE: Its ultrasonic wave can cover an area of 80 to 1600 square meters. Since ultrasonic waves cannot penetrate walls and solid objects, it is recommended to put one in every room • EASY TO USE & NICE SHAPE: Just plug the electronic pest control ultrasonic repellent into power sockets and it will start to repel the pests when you notice the blue night light is on. • SAFE for HUMAN/PETS: Destroying the living environment of the pests physically, the ultrasound waves only affect pests and mice. For children/pregnant women/The aged/pets, the pest Repeller is safe and does not interfere with domestic appliances. Qui • 100% SATISFACTION: We want to help you keep pests away from your home so our professional team has done many experiments. The typical results can take 1 week depending on the severity of the pest infestation.