10/5/3/1 Ultra High Frequency Pest Repeller Set, suitable for all types of houses. White model. Ultra High Frequency plug-in device. Used to repel spiders, rats, mosquitoes, cockroaches, mice, rodents, insects, ants, flies. US standard plug 110V. An electronic ultrasonic device for repelling insects. Suitable for indoor household use. Can be used to repel rats, cockroaches, mosquitoes, geckos, flying insects, pests and snakes. Can effectively repel small animals.