Mouse Repellent Ultrasonic Plug in, 360° Mice Repeller Indoor with 4-in-1 Pest Squirrel Rodent Deterrent Device for Attic House Garage Basement

Silent and deadly! No signs of critters or rodents in our barn or outbuildings.

We have seen rats literally sitting on top of this device, with indicator light on. No effect on the rats whatsoever.

Seems to work well

Several months later only seeing a rare rodent here and there. Before this arrived there was a rodent invasion. Only issue, not for me, is my grandson and friend can hear the ultrasonic sound.

Basically pointless, entirely non functional, and didn't do anything. Other than light up, doesn't appear to do anything. Returned.

Its very clear and does what its supposed to but I am not sure if it helps with the rodents behind the wall. I am going to keep monitoring it since I just purchased and hopefully it gives what I need and that is to run them off from behind the walls of my home.

After reroofing, persistent squirrels chewed back into our roof, despite new hard insulation (not the soft, comfy stuff they had previously enjoyed). Most outdoor repellers are solar-powered but that would not have worked here. So I tried this one outdoors, even though it's designed for indoor use. Instructions say it won't go through lumber, but it did in this case. The first night, the squirrels shoved it, moved it a bit, and chewed it. They obviously didn't like it, but it still worked. In less than a week, the squirrels were gone.

Easy and simple to let you know not worth it doesn’t work