W wrndln Well-known member Jan 15, 2012 #42 I tried the ultra sonic plug in electric devices and I don't think they are effective. There might be different kinds of them, but mine wasn't effective. I still had mice after I installed them. Rusty Nelson
I tried the ultra sonic plug in electric devices and I don't think they are effective. There might be different kinds of them, but mine wasn't effective. I still had mice after I installed them. Rusty Nelson