Originally Posted by
mbres
We are flying business class from Rome to DC. I was doing some reading online (info could be outdated) and apparently some airlines/aircraft one needs a two prong adapter to use their own earbuds. I also read that United might hand out earbuds? What is the situation on United in business class? Thanks.
Untrue. Regular headphone works, even on two or three prone plug.
Recommend to bring your own headphone anyway. Quality for airline supplied headphone is average, and sometimes the jack to plug in is bent already from previous uses.