How to Buy the Right HDMI Cable... It's Confusing

I do not have a clue as to what this man is talking about and what is he scribbling on the board. If I knew what I was doing I would go to this station but seeing that I don't know what I'm doing this man is talking like a computer expert and I am not a computer expert so as I said what is he talking about

Hey brother!Can you help me with a question since you know far more than me?I prioritize NC and comfort and I have these options;(edifier WH950NB, sony wh750b, 1more sonoflow, anker soundcore q30 and space one)what option is better?you can sugest something else if you know 😊

Very good.👍