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This model LG TV does not have the ability to wirelessly connect to sound equipment, such as soundbars. A Digital Optical cable will be necessary as this model TV has no other audio output ports, unless you are routing the audio directly from the source (cable/satellite receiver, game system, etc.) to or through audio equipment (soundbar, surround sound receiver).
I would recommend:
Sorry, there was a problem. Please try again later.All you will need is the digital optical cable. That's the only thing that you need.
Sorry, there was a problem. Please try again later.Not sure specifically about your model sound bar but, I have an LG sound bar and mine is connected via a fiber optic cable, AKA digital optical audio cable. So, if your sound bar has an optic input, yes, you can connect it. You will only need an optical audio cable to make the connection which is not included with the TV and can be found at most any store for $10 to $25 depending on brand and length.
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