Bcurb Ultrasonic Pest Repeller Electronic Plug in Repellent for Mice, Mosquitoes, Cockroaches, Ants, Rodents, Flies, Bugs, Spiders, Rats, Other Insects. (LightGreen/White - 3 Pc)

I was pleased to get two pest contol monitors for the price of one. I used it to deter the chimney sweeps in my fireplace. It stopped the chipping. Also, I plugged one in the hallway and it serves as a night light.