These units are new old stock. We are unable to test all items. Please inspect all pictures closely. We have many related items, so make sure to check them all out.Please remember that we are all human. We will do our best to describe each item to the best of our ability. If you have any questions or concerns please feel free to contact our friendly staff and we will try to help you anyway we can. WE TAKE PRIDE IN BUILDING A STRONG FEEDBACK REPORT.