Heated grips

Hi ever one, my Father has a Can Am outlander and we want to do some winter riding. The local Can Am dealer has told my father that they have heated hand grips that can plug into the machine and do not have to be hard wired in.
Does anyone know about these or tell me if they exist and do they work ok?
I did a search and I could not find any grips that just plug in.
Thx for any help.