Eiffel Tower e-tickets?

This is from the Eiffel Tower website: http://www.tour-eiffel.fr/en/preparing-your-visit/buying-your-tickets.html "To enter the Eiffel Tower, you must show a valid e-ticket (no entry with only a reservation number) : either the print out on a letter-size sheet of paper that clearly identifies your first and last name and the information concerning the visit purchased, especially the bar codes and numbers. OR your cell phone with the bar codes displayed on the screen. Make sure that your phone is compatible with bar code systems." So, if your i-pad or cell phone will display the bar code, it looks like you're okay (and hubby is off the hook! :)

Thanks! We are on our way!