ENHANCED PET CONTROL TECHNOLOGY: Adopts effective and safe technology to disrupt and irritate the nervous system of insect pests, which is more powerful and makes pests and rodents harder to immunize than before. Then we can say goodbye to pests and mice! EASY TO USE: Just plug the pest repeller into the outlet. Please be sure to install it vertically 7-32 inches from the ground. And make sure there are no barriers like curtains or cabinets covering in front of the repeller. MORE SAFETY FOR CHILDREN AND PETS: Different from traditional repeller, this electronic pest repeller works more environmentally friendly without harmful chemicals, but uses ultrasonic frequency (22-65Khz) sound waves to hunt pests and kill them without killing them. . It is cheaper and more durable than pestrepeller and other pest control methods. WIDE EFFECTIVE COVERAGE: The insect and rodent repellent is effective in indoor spaces up to 1600 square feet. We recommend that you install one for each room, as the