petal spare beetle united airlines headphone jacks Extensively Feat Manifest
United's latest jets will offer Bluetooth for in-flight entertainment - The Verge
When using DirectTV, make sure to plug in the headphones firmly or else the audio will sound bad. DirectTV and Personal Device Entertainment are all free! - Picture of United Airlines - Tripadvisor
A 16-hour redeye: Reviewing United Polaris on the 787-9 Dreamliner - The Points Guy
usb port to plug into and headphone jack - Picture of United Airlines - Tripadvisor
UA930 SFO-LHR - 777-200 Polaris Class - Seat 8G - Headphone Jack & International Charging Outlet - Picture of United Airlines - Tripadvisor
Flight Reviews: United Airlines (777) Polaris Business Class - San Francisco to Tokyo - PointsWise
Headphone uses two prong plug. No way to plug in your own one prong plug headphones with out an adapter. - Picture of United Airlines - Tripadvisor