Effective Aug. 24, 2021, Back To School Sale! (normally $49) [we accept PO's at accounting1@rjcooper.com]
"This is a simple, LARGE, round button, similar to ones from other companies." RJ
Requires switch interface to plug into a computer or iPad.
My LARGE Switch is the product you didn't think you need, but once you have it, something you won't want to live without.