I have a kaled553dxzb and i want audio to both TV and headphones

When you plug in your wired headphones the TV speakers go off?
This is part of the headphone jack itself. A technician could solder a jumper across terminals of the jack to allow the TV speakers to continue playing when you plug in the headphones.
If your headphones are wireless and when you turn on bluetooth in the TV the speakers turn off then you can't do anything about that. The way around this is to connect both a soundbar and bluetooth transmitter to the audio output of the TV.