Review on 🐾 MAGIC CAT Ultrasonic Rodent Repeller: 3-in-1 Pest Control Device - Get Rid of Mice, Rats, and Squirrels - Effective Mouse Blocker and Rat Deterrent with Ultrasound Pressure Wave - Humane Indoor Pest Repellent Solution by Negil Dunnigan

I had a mouse invasion during a cold snap. I turned it on and watched the mice walk right next to it, it didn't help to dissuade them. But I got terrible migraines, so it was a double whammy. I returned it, a fraudulent product, they hunt desperate people who don't want to kill. Use plastic critter traps with a regular salt cracker. I caught all the mice, put them in a large plastic bucket with a lid for a few days, and released them at a nearby deer park.