Mole Entertainment
I bought these in the Spring due to having my very first mole(s) in my yard. I wanted to find a humane way to deal with the situation so I gave these a try.  Let's just say they do not work at all!  In fact the mole made a tunnel right around one of them!!!! hahahaha  Funny, but not funny!  I gave them 2 stars because they are still out there 'beeping' away even after being through rain and extreme heat... they are operating, but just aren't keeping anything away! I think the moles are more entertained than anything else - they have not helped at all.  Save your money and keep scrolling past these devices.  I don't think it has anything to do with what brand they are because I bought 2 sets... different brands... no success.
Rating: 2 stars