The ultrasonic pest repeller is working by Electromagnetic waves and ultrasonic waves
Safe for Human/Pets
Ultrasonic pest repeller adopts physical pest control method, free of radiation, smell and noise. Repellent plug-ins is 100% environmental and effective. And emitted ultrasonic waves are only identified by insects, safe for humans and pets.
Easy to Use
Just plug the pest repellent into the socket. Blue LED light on means it is running. Please make sure to install it vertically 7-31 in away from the floor. And make sure there are no barriers like curtains or cabinets covering in front of the mice repellent plug-ins.