Fitnate Ultrasonic Pest Repeller Noiseless Mouse Mosquito Bug Repellent Rat Reject

Wide Range - can be widely used in households, hotels, restaurants, storehouses, supermarkets, hospitals, offices, and any place where have insects, mice, roaches, spiders. The effective range of this product under the open environment is controlled about 1,200 sq ft ultrasonic waves can't pass through walls and solid objects, we suggest using at least 1 device for each bedroom, and at least a couple units for areas where pests problems are serious.