How to use Hilton's mobile phone room card?

Hilton launched a mobile phone application called HH Honors. In addition to providing online check-in service, the application can also be combined with Hilton's digital key system to realize the function of electronic key.

Specifically, as long as the user opens the app in the mobile phone and then presses the "Touch Unlock" button within an effective distance (about 1.5 meters), the door will automatically open after about 10 seconds.

At present, Hilton's digital key system has been put into operation in more than 1700 hotels, mainly in the United States and Canada.