Moderator: Hawaii-based airlines & Hawai'i forums
Join Date: Mar 2003
Location: Ka ʻĀpala Nui, Nuioka
Programs: NEXUS/Global Entry, Delta, United, Hyatt, IHG, Marriott, and Hertz
Posts: 18,692
This is not the same plug as the two-prongs you see on other airlines. The first port is a standard stereo mini; the second is to power the noise canceling headphones that UA uses. Any set of headphones works when plugged into the stereo mini jack.