Wireless Kill Switch?

Any of y’all that troll using one? I just installed one by Fell Marine on a customers boat I’m rigging, they seem to be a nice alternative to the old cord but haven’t had it on the water yet.

I use the one MOB+ by Fell. I like it. I especially like the button that will kill the motor from anywhere on the boat. Comes in handy when you snag something trolling or downrigging and you want the motor stopped but you got a pole in your hands running drag.