Sync using the sync button as required above, works well so far, will be re-posting soon I had to re-sync all the remotes at the same time for them to work. These blue and red remotes would smack each other when synced individually, vying for first player spot. Had to sync by first pressing the red sync button on the remote and the blue remote preferred to sync with the system sync button first. If it makes sense Opposite timing styles.