I have seen a similar unit advertised on Facebook, but I am not going to randomly order something off of a Facebook Ad.
However, I think the idea has a lot of merit, and am looking forward to seeing if it works as well as I imagine it does.
Frankly, if Work Sharp is standing behind it, that is enough for me.
They have a more detailed description which you can read at WorkSharpTools.com
There is a longer User Guide Video as well…