Operation Confirmed Features continuous rapid-fire ----------------------------------------------- [Confirmation Details] Simple operation check using a PC tester. Button response Player lamp illumination Stick center position via stick calibration Rapid-fire function Back buttons Battery life is unknown. No other operational checks have been performed. ----------------------------------------------- This is a layman's confirmation, and the item is used. I have not performed long-term operation, so I have not confirmed battery life, etc. There may be slight differences in button response. Thank you.