What is the Skully Owners Stimulus (SOS)? Geraud Krawezik August 16, 2016 18:53 Follow The Skully Owners Stimulus is a way for FUSAR to help the riders who had invested in Skully's AR-1 helmet. You can read more about it here Related articles ChangeLog Where can I find your products? What type of battery? Can it be swapped? Comments 1 comment Sort by Date Votes Cyril Londechamp July 03, 2017 17:33 Edited Scary 0 Permalink Please sign in to leave a comment.