Plug the device into an electrical outlet in the room where you have noticed pests. Place it so that the front is facing the room, without obstacles in front (furniture, curtains, large objects). The device turns on automatically and emits ultrasound that disturbs rodents and insects. Leave the device running continuously, 24/7, for maximum effectiveness. During the first 3–7 days, pest activity may temporarily increase — this is normal, the ultrasound drives them out of their hiding places. After 2–3 weeks, you will notice a significant reduction in rodents, cockroaches and other insects. For large areas or multiple rooms, use one device in each room Fly Repellent