A:AnswerThe LG 50 inch Class 4K Smart UHD TV w/AI ThinQ® (49.5'' Diag), Model # 50UM7300PUA has slots on either side that the stand legs slide into that you can secure with the supplied screws. They will lift the TV up by 2.3"...^IFV
A:AnswerI've got mine stuck on the wall, and the legs removed. I put a tape measure on the leg holes and they're at 39.5" center to center. For the 50 inch TV, you will be alright.
A:AnswerYou would need a bluetooth headset if you wish to connect a wireless headset to the TV. If you ever have any questions please don't hesitate to reach out to our support team on Twitter via @LGUSSupport or on Facebook at https://www.facebook.com/LGUSA/ ^CP
A:AnswerAfter selecting the TV from the drop down mirroring menu on my iPad, and answering the question a window with the Airplay & HomeKit settings appeared