Ultrasonic Pest Repeller 10 Pack,Electronic Pest Repellent Plug in,Mosquito Repellent Indoor,Mice Mosquito Cockroach Repellent,Efficient Pest Control to Repel Bugs,Fleas in Home,School,WarehouseBrand: wyewye Color: White Features: Latest Inner Ultrasonic Chip Pest Repeller: The upgrade ultrasonic chip irritates the hearing and nervous system of mosquitoes, rats, spiders, mice, fleas, cockroaches by ultrasonic waves to make them leave away from your places. Easy to Use Mosquito Repeller: Our mosquito repeller is simply plug in socket, it works when the blue working light glow. The pest repeller advice should be installed 10 30 inches away