You probably wouldn't need a hat. Neurostimulators made by Medtronic, the part that outputs the therapy and listens for input, are actually implanted in the ch

You probably wouldn't need a hat. Neurostimulators made by Medtronic, the part that outputs the therapy and listens for input, are actually implanted in the chest or stomach area. The actual brain implant is just a thin wire that connects to the stimulator.