With the latest in ultrasonic pest control technology, each repeller plugin uses sound waves to disrupt the central nervous system, pests, mice, rats, spiders, fleas, cockroaches and thumbtacks Bed and mosquitoes have nowhere to hide and are effectively repelled. This pest repellent is effective for an area up to 120 square meters. Please note that ultrasonic waves cannot penetrate walls and solid objects. It is recommended to put an insect repellent in a room. It works by plugging the insect repellent into the socket and the breathing light will start to work with the flickering. Pests are repelled and driven away within 3-4 weeks by using this insect repellent. Insure yourself that there are no barriers such as curtains or closet covers in front of the repellent for the perfect effect. This ultrasonic insect repellent is only audible to insect pests. People and pets will not be affected, and there will be no harm to pregnant women and children. But if you keep the hamster as a pet
